Boost搜索引擎

1.项目相关背景

百度，搜狐，360等搜索引擎；
boost的官网是没有站内搜索的。
2.搜索引擎的相关宏观原理

爬虫程序我就不做了，受国家的法律法规的限制，我就通过正规的下载途径来做。
3.搜索引擎技术栈和项目环境

技术栈 : C/C++ C++11, STL, 准标准库 Boost ， Jsoncpp ， cppjieba ， cpp - httplib , html5 ， css ， js 、jQuery、 Ajax
项目环境： Centos 7 云服务器， vim/gcc(g++)/Makefile , vs2019 or vs code
4.正排序引VS倒排序引-搜索引擎具体原理

文档 1 ：雷军买了四斤小米
文档 2 ：雷军发布了小米手机
正排索引：就是从文档 ID 找到文档内容 ( 文档内的关键字 )
目标文档进行分词（目的：方便建立倒排索引和查找）：
文档 1[ 雷军买了四斤小米 ]: 雷军 / 买 / 四斤 / 小米 / 四斤小米
文档 2[ 雷军发布了小米手机 ] ：雷军 / 发布 / 小米 / 小米手机
停止词：了，的，吗， a ， the，一般我们在分词的时候可以不考虑
倒排索引：根据文档内容，分词，整理不重复的各个关键字，对应联系到文档 ID 的方案
关键字(具有唯一性)	文档，weight(权重)
雷军	文档1，文档2
买	文档1
四斤	文档1
小米	文档1，文档2
四斤小米	文档1
发布	文档2
小米手机	文档2
模拟一次查找的过程：
用户输入：小米 -> 倒排索引中查找 -> 提取出文档 ID(1,2) -> 根据正排索引 -> 找到文档的内容 ->
title+conent （desc） +url 文档结果进行摘要 -> 构建响应结果
5.编写数据去标签与数据清洗的模块Parser

boost 官网： https : //www.boost.org/
// 目前只需要 boost_1_78_0/doc/html 目录下的 html 文件，用它来进行建立索引
去标签
[ whb@VM - 0 - 3 - centos boost_searcher ] $ touch parser . cc
// 原始数据 -> 去标签之后的数据
DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd" >
< html >
< head >
< meta http - equiv = "Content-Type" content = "text/html; charset=UTF-8" >
< title > Chapter 30. Boost . Process title >
< link rel = "stylesheet" href = "../../doc/src/boostbook.css" type = "text/css" >
< meta name = "generator" content = "DocBook XSL Stylesheets V1.79.1" >
< link rel = "home" href = "index.html" title = "The Boost C++ Libraries BoostBook Documentation
Subset" >
< link rel = "up" href = "libraries.html" title = "Part I. The Boost C++ Libraries (BoostBook
Subset)" >
< link rel = "prev" href = "poly_collection/acknowledgments.html" title = "Acknowledgments" >
< link rel = "next" href = "boost_process/concepts.html" title = "Concepts" >
head >
< body bgcolor = "white" text = "black" link = "#0000FF" vlink = "#840084" alink = "#0000FF" >
< table cellpadding = "2" width = "100%" >< tr >
< td valign = "top" >< img alt = "Boost C++ Libraries" width = "277" height = "86"
src = "../../boost.png" > td >
< td align = "center" >< a href = "../../index.html" > Home a > td >
< td align = "center" >< a href = "../../libs/libraries.htm" > Libraries a > td >
< td align = "center" >< a href = "http://www.boost.org/users/people.html" > People a > td >
< td align = "center" >< a href = "http://www.boost.org/users/faq.html" > FAQ a > td >
< td align = "center" >< a href = "../../more/index.htm" > More a > td >
tr > table >
.........
// <> : html 的标签，这个标签对我们进行搜索是没有价值的，需要去掉这些标签，一般标签都是成对出现的！
[ whb@VM - 0 - 3 - centos data ] $ mkdir raw_html
[ whb@VM - 0 - 3 - centos data ] $ ll
total 20
drwxrwxr - x 60 whb whb 16384 Mar 24 16 : 49 input // 这里放的是原始的 html 文档
drwxrwxr - x 2 whb whb 4096 Mar 24 16 : 56 raw_html // 这是放的是去标签之后的干净文档
[ whb@VM - 0 - 3 - centos input ] $ ls - Rl | grep - E '*.html' | wc - l
8141
目标：把每个文档都去标签，然后写入到同一个文件中！每个文档内容不需要任何 \n ！文档和文档之间用 \3 区分
version1 ：
类似： XXXXXXXXXXXXXXXXX\3YYYYYYYYYYYYYYYYYYYYY\3ZZZZZZZZZZZZZZZZZZZZZZZZZ\3
采用下面的方案：
version2 : 写入文件中，一定要考虑下一次在读取的时候，也要方便操作 !
类似： title\3content\3url \n title\3content\3url \n title\3content\3url \n ...
方便我们 getline ( ifsream , line ) ，直接获取文档的全部内容： title\3content\3url
编写 parser

#include
#include
#include
#include
#include"util.hpp"
 
 
const std::string src_path = "data/input/";   //所有的html
const std::string output = "data/raw_html/raw.txt"; //解析所有完的html
 
typedef  struct DocInfo54
{
    std::string title;    //文档的标题
    std::string content;  //文档的内容
    std::string url;      //该文档在官网的url
}DocInfo_t;
 
bool EnumFile(const std::string &src_path,std::vector *file_list);
bool ParseHtml(std::vector& file_list,std::vector *results);
bool SaveHtml(std::vector& results,const std::string &output);
 
 
 
static bool ParseTitle(const std::string &result,std::string *title) 
{
    size_t begin = result.find(""</span>);</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="27"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    <span class="hljs-keyword">if</span>(begin == std::string::npos)</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="28"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="29"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-keyword">return</span> <span class="hljs-literal">false</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="30"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="31"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    <span class="hljs-type">size_t</span> end = result.<span class="hljs-built_in">find</span>(<span class="hljs-string">"");
    if(end == std::string::npos)
    {
        return false;
    }
    begin += std::string(""</span>).<span class="hljs-built_in">size</span>();</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="37"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    <span class="hljs-keyword">if</span>(begin > end)</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="38"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="39"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-keyword">return</span> <span class="hljs-literal">false</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="40"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="41"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    *title = result.<span class="hljs-built_in">substr</span>(begin,end - begin);</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="42"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="43"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    <span class="hljs-keyword">return</span> <span class="hljs-literal">true</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="44"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">}</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="45"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-function"><span class="hljs-type">static</span> <span class="hljs-type">bool</span> <span class="hljs-title">ParseContent</span><span class="hljs-params">(<span class="hljs-type">const</span> std::string &file,std::string *content)</span></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="46"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">{</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="47"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    <span class="hljs-comment">//去标签，基于一个简单的状态机</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="48"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    <span class="hljs-keyword">enum</span> <span class="hljs-title class_">status</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="49"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="50"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        LABLE,</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="51"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        CONTENT</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="52"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    };</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="53"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    <span class="hljs-keyword">enum</span> <span class="hljs-title class_">status</span> s = LABLE;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="54"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    <span class="hljs-keyword">for</span>(<span class="hljs-keyword">auto</span> e :file)</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="55"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="56"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-keyword">switch</span> (s)</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="57"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="58"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-keyword">case</span> LABLE:</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="59"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-keyword">if</span>(e == <span class="hljs-string">'>'</span>)  <span class="hljs-comment">//代表结束</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="60"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                s = CONTENT;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="61"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-comment">/* code */</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="62"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-keyword">break</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="63"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-keyword">case</span> CONTENT:</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="64"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-keyword">if</span>(e == <span class="hljs-string">'<'</span>) <span class="hljs-comment">//代表开始</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="65"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                s = LABLE;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="66"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-keyword">else</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="67"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="68"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                <span class="hljs-keyword">if</span>(e == <span class="hljs-string">'\n'</span>) e = <span class="hljs-string">' '</span>; </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="69"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                *content += e;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="70"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="71"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-keyword">break</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="72"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-keyword">default</span>:</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="73"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-keyword">break</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="74"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="75"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="76"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    <span class="hljs-keyword">return</span> <span class="hljs-literal">true</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="77"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">}</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="78"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-function"><span class="hljs-type">static</span> <span class="hljs-type">bool</span> <span class="hljs-title">ParseUrl</span><span class="hljs-params">(<span class="hljs-type">const</span> std::string &file,std::string *url)</span></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="79"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">{</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="80"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    std::string url_head = <span class="hljs-string">"https://www.boost.org/doc/libs/1_79_0/doc/html/"</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="81"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    std::string url_tail = file.<span class="hljs-built_in">substr</span>(src_path.<span class="hljs-built_in">size</span>());</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="82"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    *url = url_head + url_tail;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="83"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    <span class="hljs-keyword">return</span> <span class="hljs-literal">true</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="84"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">}</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="85"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="86"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-function"><span class="hljs-type">int</span> <span class="hljs-title">main</span><span class="hljs-params">()</span></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="87"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">{</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="88"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    <span class="hljs-comment">//第一步拿到所有文件名</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="89"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    std::vector<std::string> files_list;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="90"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    <span class="hljs-keyword">if</span>(!<span class="hljs-built_in">EnumFile</span>(src_path,&files_list))</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="91"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="92"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        std::cerr<<<span class="hljs-string">"enum file name error"</span><<std::endl;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="93"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-keyword">return</span> <span class="hljs-number">1</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="94"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="95"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    <span class="hljs-comment">//第二步解析文件</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="96"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    std::vector<DocInfo_t> results;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="97"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    <span class="hljs-keyword">if</span>(!<span class="hljs-built_in">ParseHtml</span>(files_list,&results))</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="98"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="99"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        std::cerr<<<span class="hljs-string">"parse is error"</span><<std::endl;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="100"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-keyword">return</span> <span class="hljs-number">2</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="101"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="102"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    <span class="hljs-comment">//第三步,把解析完毕的各个文件内容，写入output,按照\3作为每个文档的分隔符</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="103"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    <span class="hljs-keyword">if</span>(!<span class="hljs-built_in">SaveHtml</span>(results,output))</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="104"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="105"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        std::cerr<<<span class="hljs-string">"save html error"</span><<std::endl;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="106"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-keyword">return</span> <span class="hljs-number">3</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="107"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="108"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    <span class="hljs-keyword">return</span> <span class="hljs-number">0</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="109"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">}</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="110"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="111"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-function"><span class="hljs-type">bool</span> <span class="hljs-title">EnumFile</span><span class="hljs-params">(<span class="hljs-type">const</span> std::string &src_path,std::vector<std::string> *file_list)</span>  <span class="hljs-comment">//拿到所有html文件名</span></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="112"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">{</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="113"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    <span class="hljs-keyword">namespace</span> fs = boost::filesystem;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="114"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    <span class="hljs-function">fs::path <span class="hljs-title">root_path</span><span class="hljs-params">(src_path)</span></span>;   <span class="hljs-comment">//创建一个路径名对象</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="115"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    <span class="hljs-keyword">if</span>(!fs::<span class="hljs-built_in">exists</span>(root_path))  <span class="hljs-comment">//根据路径创建的对象不存在</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="116"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="117"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        std::cerr<<src_path<<<span class="hljs-string">"not exists"</span><<std::endl;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="118"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-keyword">return</span> <span class="hljs-literal">false</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="119"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="120"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    <span class="hljs-comment">//定义一个空迭代器，用来判断递归结束</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="121"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    fs::recursive_directory_iterator end;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="122"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    <span class="hljs-keyword">for</span>(fs::recursive_directory_iterator <span class="hljs-built_in">it</span>(root_path); it != end; ++it)</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="123"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="124"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-keyword">if</span>(!fs::<span class="hljs-built_in">is_regular_file</span>(*it)) <span class="hljs-comment">//如果不是普通文件继续</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="125"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="126"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-keyword">continue</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="127"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="128"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-keyword">if</span>(it-><span class="hljs-built_in">path</span>().<span class="hljs-built_in">extension</span>() != <span class="hljs-string">".html"</span>)</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="129"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="130"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-keyword">continue</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="131"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="132"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-comment">//测试</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="133"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-comment">//std::cout<<"debug"<<it->path().string()<<std::endl;</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="134"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        file_list-><span class="hljs-built_in">push_back</span>(it-><span class="hljs-built_in">path</span>().<span class="hljs-built_in">string</span>());</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="135"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="136"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="137"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    <span class="hljs-keyword">return</span> <span class="hljs-literal">true</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="138"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">}</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="139"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-function"><span class="hljs-type">void</span> <span class="hljs-title">ShowInfo</span><span class="hljs-params">(<span class="hljs-type">const</span> DocInfo_t &doc)</span></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="140"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">{</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="141"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    std::cout<<doc.title<<std::endl;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="142"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    std::cout<<doc.content<<std::endl;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="143"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    std::cout<<doc.url<<std::endl;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="144"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">}</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="145"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-function"><span class="hljs-type">bool</span> <span class="hljs-title">ParseHtml</span><span class="hljs-params">(std::vector<std::string>& file_list,std::vector<DocInfo_t> *results)</span><span class="hljs-comment">//拿到所有html的标题，内容，url</span></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="146"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">{</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="147"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    <span class="hljs-keyword">for</span>(<span class="hljs-type">const</span> <span class="hljs-keyword">auto</span>  file : file_list)</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="148"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="149"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-comment">//1读取文件</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="150"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        std::string result;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="151"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-keyword">if</span>(!ns_util::FileUtil::<span class="hljs-built_in">ReadFile</span>(file,&result))</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="152"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="153"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-comment">//文件读取失败</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="154"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-keyword">continue</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="155"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="156"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        DocInfo_t doc;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="157"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-comment">//2提取标签</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="158"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-keyword">if</span>(!<span class="hljs-built_in">ParseTitle</span>(result,&doc.title))</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="159"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="160"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-keyword">continue</span>;;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="161"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="162"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-comment">//3提取内容</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="163"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-keyword">if</span>(!<span class="hljs-built_in">ParseContent</span>(result,&doc.content))</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="164"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="165"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-keyword">continue</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="166"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="167"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-comment">//4提取url</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="168"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-keyword">if</span>(!<span class="hljs-built_in">ParseUrl</span>(file,&doc.url))</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="169"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="170"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-keyword">continue</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="171"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="172"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-comment">//将结果出入到vector，这里有拷贝问题，以后在优化</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="173"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        results-><span class="hljs-built_in">push_back</span>(std::<span class="hljs-built_in">move</span>(doc)); <span class="hljs-comment">//采用右值，资源转移</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="174"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-comment">//for debug</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="175"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-comment">//ShowInfo(doc);</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="176"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-comment">//break;</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="177"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="178"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    <span class="hljs-keyword">return</span> <span class="hljs-literal">true</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="179"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">}</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="180"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-function"><span class="hljs-type">bool</span> <span class="hljs-title">SaveHtml</span><span class="hljs-params">(std::vector<DocInfo_t>& results,<span class="hljs-type">const</span> std::string &output)</span></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="181"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">{</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="182"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-meta">#<span class="hljs-keyword">define</span> SEP <span class="hljs-string">'\3'</span></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="183"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    <span class="hljs-function">std::ofstream <span class="hljs-title">of</span><span class="hljs-params">(output,std::ios::out | std::ios::binary)</span></span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="184"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    <span class="hljs-keyword">if</span>(!of.<span class="hljs-built_in">is_open</span>())</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="185"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="186"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        std::cerr<<<span class="hljs-string">"open"</span><<output<<<span class="hljs-string">"fail"</span><<std::endl;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="187"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-keyword">return</span> <span class="hljs-literal">false</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="188"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="189"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    <span class="hljs-comment">//写入文件</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="190"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    <span class="hljs-keyword">for</span>(<span class="hljs-type">const</span> <span class="hljs-keyword">auto</span> &item : results)</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="191"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="192"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        std::string  out_result;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="193"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        out_result = item.title;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="194"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        out_result += SEP;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="195"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        out_result += item.content;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="196"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        out_result += SEP;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="197"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        out_result += item.url;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="198"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        out_result += <span class="hljs-string">'\n'</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="199"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="200"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        of.<span class="hljs-built_in">write</span>(out_result.<span class="hljs-built_in">c_str</span>(),out_result.<span class="hljs-built_in">size</span>());</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="201"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="202"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    of.<span class="hljs-built_in">close</span>();</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="203"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    <span class="hljs-keyword">return</span> <span class="hljs-literal">true</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="204"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">}</div></div></li></ol></code><div class="hide-preCode-box"><span class="hide-preCode-bt" data-report-view="{"spm":"1001.2101.3001.7365"}"><img class="look-more-preCode contentImg-no-view" src="https://1000bd.com/contentImg/2022/06/27/191644837.png" alt="" title=""></span></div><div class="hljs-button signin" data-title="登录后复制" data-report-click="{"spm":"1001.2101.3001.4334"}" onclick="hljs.signin(event)"></div></pre> 
       <div>
        <span style="color:#333333;"><strong>boost 开发库的安装</strong></span>
       </div> 
       <div>
        <span style="color:#333333;"><strong>s</strong></span>
        <span style="color:#000000;">udo yum install </span>
        <span style="color:#981a1a;">-</span>
        <span style="color:#000000;">y boost</span>
        <span style="color:#981a1a;">-</span>
        <span style="color:#000000;">devel </span>
        <span style="color:#aa5500;">//</span>
        <span style="color:#aa5500;">是</span>
        <span style="color:#aa5500;">boost </span>
        <span style="color:#aa5500;">开发库</span>
       </div> 
       <div>
        <span style="color:#333333;"><strong>提取</strong></span>
        <span style="color:#333333;"><strong>title</strong></span>
       </div> 
       <div>
        <img alt="" height="420" src="https://1000bd.com/contentImg/2022/08/10/110934127.png"  >
       </div> 
       <p> <img alt="" height="384" src="https://1000bd.com/contentImg/2022/08/10/110934322.png"  ></p> 
       <p><img alt="" height="799" src="https://1000bd.com/contentImg/2022/08/10/110934542.png"  > <span style="color:#333333;">在进行遍历的时候，只要碰到了 </span><span style="color:#333333;">> </span><span style="color:#333333;">,</span><span style="color:#333333;">就意味着，当前的标签被处理完毕</span><span style="color:#333333;">. </span><span style="color:#333333;">只要碰到了 </span><span style="color:#333333;">< </span><span style="color:#333333;">意味着新的标签开始了</span></p> 
       <p><span style="color:#333333;"><strong>构建</strong></span><span style="color:#333333;"><strong>URL </strong></span></p> 
       <div>
        <span style="color:#333333;">boost</span>
        <span style="color:#333333;">库的官方文档，和我们下载下来的文档，是有路径的对应关系的</span>
       </div> 
       <div> 
        <div>
         <span style="color:#333333;">官网</span>
         <span style="color:#333333;">URL</span>
         <span style="color:#333333;">样例： </span>
         <span style="color:#333333;">https://www.boost.org/doc/libs/1_78_0/doc/html/accumulators.html </span>
        </div> 
        <div>
         <span style="color:#333333;">我们下载下来的</span>
         <span style="color:#333333;">url</span>
         <span style="color:#333333;">样例：</span>
         <span style="color:#333333;">boost_1_78_0/doc/html/accumulators.html </span>
        </div> 
        <div>
         <span style="color:#333333;">我们拷贝到我们项目中的样例：</span>
         <span style="color:#333333;">data/input/accumulators.html //</span>
         <span style="color:#333333;">我们把下载下来的</span>
         <span style="color:#333333;">boost</span>
         <span style="color:#333333;">库 </span>
         <span style="color:#333333;">doc/html/* copy </span>
        </div> 
        <div>
         <span style="color:#333333;">data/input/ </span>
        </div> 
        <div>
         <span style="color:#333333;">url_head = "https://www.boost.org/doc/libs/1_78_0/doc/html"; </span>
        </div> 
        <div>
         <span style="color:#333333;">url_tail = [data/input](</span>
         <span style="color:#333333;">删除</span>
         <span style="color:#333333;">) /accumulators.html -> url_tail = /accumulators.html </span>
        </div> 
        <div>
         <span style="color:#333333;">url = url_head + url_tail ; </span>
         <span style="color:#333333;">相当于形成了一个官网链接 </span>
        </div> 
       </div> 
       <p> <span style="color:#333333;"><strong>将解析内容写入文件中</strong></span> </p> 
       <div>
        <span style="color:#aa5500;">//</span>
        <span style="color:#aa5500;">见代码 </span>
       </div> 
       <div>
        <span style="color:#000000;">采用下面的方案： </span>
       </div> 
       <div>
        <span style="color:#000000;">version2</span>
        <span style="color:#333333;">: </span>
        <span style="color:#000000;">写入文件中，一定要考虑下一次在读取的时候，也要方便操作</span>
        <span style="color:#981a1a;">! </span>
       </div> 
       <div>
        <span style="color:#000000;">类似：</span>
        <span style="color:#000000;">title\3content\3url \n title\3content\3url \n title\3content\3url \n </span>
        <span style="color:#333333;">... </span>
       </div> 
       <div>
        <span style="color:#000000;">方便我们</span>
        <span style="color:#000000;">getline</span>
        <span style="color:#333333;">(</span>
        <span style="color:#000000;">ifsream</span>
        <span style="color:#333333;">, </span>
        <span style="color:#000000;">line</span>
        <span style="color:#333333;">)</span>
        <span style="color:#000000;">，直接获取文档的全部内容：</span>
        <span style="color:#000000;">title\3content\3url</span>
       </div> 
      </div> 
     </div> 
    </div> 
   </div> 
  </div> 
 </div> 
</div> 
<h1><a name="t5"></a>6.编写建立索引的模块Index</h1> 
<pre data-index="1" class="set-code-hide" name="code"><code class="language-cpp hljs"><ol class="hljs-ln hundred" style="width:848px"><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="1"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-meta">#<span class="hljs-keyword">pragma</span> once</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="2"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-meta">#<span class="hljs-keyword">include</span> <span class="hljs-string"><iostream></span></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="3"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-meta">#<span class="hljs-keyword">include</span> <span class="hljs-string"><string></span></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="4"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-meta">#<span class="hljs-keyword">include</span> <span class="hljs-string"><vector></span></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="5"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-meta">#<span class="hljs-keyword">include</span> <span class="hljs-string"><unordered_map></span></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="6"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-meta">#<span class="hljs-keyword">include</span> <span class="hljs-string"><fstream></span></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="7"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-meta">#<span class="hljs-keyword">include</span> <span class="hljs-string">"util.hpp"</span></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="8"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-meta">#<span class="hljs-keyword">include</span> <span class="hljs-string"><mutex></span></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="9"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-meta">#<span class="hljs-keyword">include</span><span class="hljs-string">"log.hpp"</span></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="10"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-keyword">namespace</span> ns_index</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="11"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">{</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="12"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    <span class="hljs-keyword">struct</span> <span class="hljs-title class_">DocInfo</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="13"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="14"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        std::string title;   <span class="hljs-comment">//文档标题</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="15"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        std::string content; <span class="hljs-comment">//文档对应的去标签之后的内容</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="16"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        std::string url;     <span class="hljs-comment">//官网的url</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="17"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-type">uint64_t</span> doc_id;     <span class="hljs-comment">//文档的id</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="18"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    };</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="19"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="20"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    <span class="hljs-keyword">struct</span> <span class="hljs-title class_">InvertedElem</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="21"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="22"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-type">uint64_t</span> doc_id;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="23"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        std::string word;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="24"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-type">int</span> weigth;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="25"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    };</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="26"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="27"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    <span class="hljs-comment">//倒排拉链</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="28"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    <span class="hljs-keyword">typedef</span> std::vector<InvertedElem> InvertedList;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="29"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="30"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    <span class="hljs-keyword">class</span> <span class="hljs-title class_">Index</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="31"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="32"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    <span class="hljs-keyword">private</span>:</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="33"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        std::vector<DocInfo> forward_index;                           <span class="hljs-comment">//正排索引</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="34"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        std::unordered_map<std::string, InvertedList> inverted_index; <span class="hljs-comment">//倒排索引</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="35"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-type">static</span> Index *Instance;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="36"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-type">static</span> std::mutex mtx;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="37"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="38"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    <span class="hljs-keyword">private</span>:</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="39"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-built_in">Index</span>() = <span class="hljs-keyword">default</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="40"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-built_in">Index</span>(<span class="hljs-type">const</span> Index &) = <span class="hljs-keyword">delete</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="41"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        Index &<span class="hljs-keyword">operator</span>=(<span class="hljs-type">const</span> Index &) = <span class="hljs-keyword">delete</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="42"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="43"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    <span class="hljs-keyword">public</span>:</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="44"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        ~<span class="hljs-built_in">Index</span>() = <span class="hljs-keyword">default</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="45"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-function"><span class="hljs-type">static</span> Index *<span class="hljs-title">GetInstance</span><span class="hljs-params">()</span></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="46"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="47"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-keyword">if</span> (<span class="hljs-literal">nullptr</span> == Instance)</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="48"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="49"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                mtx.<span class="hljs-built_in">lock</span>();</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="50"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                <span class="hljs-keyword">if</span> (<span class="hljs-literal">nullptr</span> == Instance)</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="51"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="52"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                    Instance = <span class="hljs-keyword">new</span> <span class="hljs-built_in">Index</span>();</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="53"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="54"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                mtx.<span class="hljs-built_in">unlock</span>();</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="55"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="56"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="57"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-keyword">return</span> Instance;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="58"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="59"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-comment">//根据doc_id找到文档内容</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="60"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-function">DocInfo *<span class="hljs-title">GetForWardIndex</span><span class="hljs-params">(<span class="hljs-type">uint64_t</span> doc_id)</span></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="61"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="62"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-keyword">if</span> (doc_id >= forward_index.<span class="hljs-built_in">size</span>())</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="63"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="64"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                std::cerr << <span class="hljs-string">"doc_id is error"</span> << std::endl;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="65"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                <span class="hljs-keyword">return</span> <span class="hljs-literal">nullptr</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="66"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="67"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-keyword">return</span> &forward_index[doc_id];</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="68"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="69"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-comment">//根据关键字string,获得倒排拉链</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="70"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-function">InvertedList *<span class="hljs-title">GetInvertedList</span><span class="hljs-params">(<span class="hljs-type">const</span> std::string &word)</span></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="71"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="72"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-keyword">auto</span> it = inverted_index.<span class="hljs-built_in">find</span>(word);</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="73"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-keyword">if</span> (it == inverted_index.<span class="hljs-built_in">end</span>())</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="74"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="75"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                std::cerr << word << <span class="hljs-string">"have no InvertedList"</span> << std::endl;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="76"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                <span class="hljs-keyword">return</span> <span class="hljs-literal">nullptr</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="77"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="78"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-keyword">return</span> &(it->second);</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="79"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="80"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-comment">//根据去标签，格式化之后的文档，构建正排索引和倒排索引</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="81"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-comment">// data/raw_html/raw.txt</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="82"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-function"><span class="hljs-type">bool</span> <span class="hljs-title">BuildIndex</span><span class="hljs-params">(<span class="hljs-type">const</span> std::string &input)</span></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="83"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="84"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-function">std::ifstream <span class="hljs-title">in</span><span class="hljs-params">(input, std::ios::in | std::ios::binary)</span></span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="85"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-keyword">if</span> (!in.<span class="hljs-built_in">is_open</span>())</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="86"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="87"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                std::cerr << <span class="hljs-string">"sorry"</span> << input << <span class="hljs-string">"open sorry"</span> << std::endl;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="88"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                <span class="hljs-keyword">return</span> <span class="hljs-literal">false</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="89"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="90"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            std::string line;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="91"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="92"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-type">int</span> count = <span class="hljs-number">0</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="93"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-keyword">while</span> (std::<span class="hljs-built_in">getline</span>(in, line))</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="94"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="95"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                DocInfo *doc = <span class="hljs-built_in">BuildForwardIndex</span>(line); <span class="hljs-comment">//构建正排</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="96"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                <span class="hljs-keyword">if</span> (doc == <span class="hljs-literal">nullptr</span>)</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="97"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="98"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                    std::cerr << <span class="hljs-string">"build"</span> << line << std::endl; <span class="hljs-comment">// for debug</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="99"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                    <span class="hljs-keyword">continue</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="100"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="101"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                <span class="hljs-built_in">BuildInvertedIndex</span>(*doc);</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="102"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                count++;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="103"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                <span class="hljs-keyword">if</span>(count % <span class="hljs-number">50</span> == <span class="hljs-number">0</span>) <span class="hljs-comment">//std::cout<<"当前已经建立的索引文档："<<count<<std::endl;</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="104"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                <span class="hljs-built_in">LOG</span>(NORMAL, <span class="hljs-string">"当前的已经建立的索引文档: "</span> + std::<span class="hljs-built_in">to_string</span>(count));</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="105"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="106"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-keyword">return</span> <span class="hljs-literal">true</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="107"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="108"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="109"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    <span class="hljs-keyword">private</span>:</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="110"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-function">DocInfo *<span class="hljs-title">BuildForwardIndex</span><span class="hljs-params">(<span class="hljs-type">const</span> std::string &line)</span></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="111"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="112"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-comment">// 1进行字符串切分</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="113"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            std::vector<std::string> results;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="114"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-type">const</span> std::string seq = <span class="hljs-string">"\3"</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="115"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            ns_util::StringUtil::<span class="hljs-built_in">Split</span>(line, &results, seq);</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="116"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-keyword">if</span> (results.<span class="hljs-built_in">size</span>() != <span class="hljs-number">3</span>)</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="117"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="118"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                <span class="hljs-keyword">return</span> <span class="hljs-literal">nullptr</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="119"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="120"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-comment">// 2将字符串进行填充到DocInfo</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="121"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            DocInfo doc;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="122"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            doc.title = results[<span class="hljs-number">0</span>];</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="123"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            doc.content = results[<span class="hljs-number">1</span>];</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="124"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            doc.url = results[<span class="hljs-number">2</span>];</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="125"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            doc.doc_id = forward_index.<span class="hljs-built_in">size</span>();</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="126"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-comment">// 3插入到正排索引的vector中</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="127"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            forward_index.<span class="hljs-built_in">push_back</span>(std::<span class="hljs-built_in">move</span>(doc));</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="128"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-keyword">return</span> &forward_index.<span class="hljs-built_in">back</span>();</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="129"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="130"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-function"><span class="hljs-type">bool</span> <span class="hljs-title">BuildInvertedIndex</span><span class="hljs-params">(<span class="hljs-type">const</span> DocInfo &doc)</span></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="131"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="132"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-comment">// word 倒排拉链</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="133"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-keyword">struct</span> <span class="hljs-title class_">word_cnt</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="134"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="135"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                <span class="hljs-comment">/* data */</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="136"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                <span class="hljs-type">int</span> title_cnt;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="137"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                <span class="hljs-type">int</span> content_cnt;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="138"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                <span class="hljs-built_in">word_cnt</span>() : <span class="hljs-built_in">title_cnt</span>(<span class="hljs-number">0</span>), <span class="hljs-built_in">content_cnt</span>(<span class="hljs-number">0</span>) {}</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="139"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            };</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="140"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            std::unordered_map<std::string, word_cnt> word_map;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="141"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-comment">//对标题进行分词</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="142"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            std::vector<std::string> title_words;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="143"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            ns_util::JiebaUtil::<span class="hljs-built_in">CurString</span>(doc.title, &title_words);</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="144"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-keyword">for</span> (<span class="hljs-keyword">auto</span> s : title_words)</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="145"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="146"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                boost::<span class="hljs-built_in">to_lower</span>(s); <span class="hljs-comment">//转化成小写</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="147"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                word_map[s].title_cnt++;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="148"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="149"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-comment">//对文档内容进行分词</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="150"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            std::vector<std::string> contnet_word;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="151"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            ns_util::JiebaUtil::<span class="hljs-built_in">CurString</span>(doc.content, &contnet_word);</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="152"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-keyword">for</span> (<span class="hljs-keyword">auto</span> s : contnet_word)</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="153"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="154"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                boost::<span class="hljs-built_in">to_lower</span>(s); <span class="hljs-comment">//转化成小写</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="155"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                word_map[s].content_cnt++;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="156"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="157"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-meta">#<span class="hljs-keyword">define</span> X 10</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="158"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-meta">#<span class="hljs-keyword">define</span> Y 1</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="159"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-keyword">for</span> (<span class="hljs-keyword">auto</span> &word_pair : word_map)</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="160"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="161"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                InvertedElem item;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="162"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                item.doc_id = doc.doc_id;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="163"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                item.word = word_pair.first;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="164"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                <span class="hljs-comment">//相关性</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="165"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                item.weigth = X * word_pair.second.title_cnt + Y * word_pair.second.content_cnt;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="166"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                InvertedList &inverted_list = inverted_index[word_pair.first];</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="167"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                inverted_list.<span class="hljs-built_in">push_back</span>(std::<span class="hljs-built_in">move</span>(item));</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="168"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="169"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-keyword">return</span> <span class="hljs-literal">true</span>;    </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="170"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="171"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    };</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="172"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    Index* Index::Instance = <span class="hljs-literal">nullptr</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="173"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    std::mutex Index::mtx;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="174"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">}</div></div></li></ol></code><div class="hide-preCode-box"><span class="hide-preCode-bt" data-report-view="{"spm":"1001.2101.3001.7365"}"><img class="look-more-preCode contentImg-no-view" src="https://1000bd.com/contentImg/2022/06/27/191644837.png" alt="" title=""></span></div><div class="hljs-button signin" data-title="登录后复制" data-report-click="{"spm":"1001.2101.3001.4334"}" onclick="hljs.signin(event)"></div></pre> 
<div>
 <span style="color:#aa5500;">//jieba</span>
 <span style="color:#aa5500;">的使用</span>
 <span style="color:#aa5500;">--cppjieba </span>
</div> 
<div>
 <span style="color:#000000;">获取链接： </span>
 <span style="color:#000000;">git clone https</span>
 <span style="color:#333333;">:</span>
 <span style="color:#aa5500;">//gitcode.net/mirrors/yanyiwu/cppjieba.git </span>
</div> 
<div>
 <span style="color:#000000;">如何使用：注意细节，我们需要自己执行： </span>
 <span style="color:#000000;">cd cppjieba</span>
 <span style="color:#333333;">; </span>
 <span style="color:#000000;">cp </span>
 <span style="color:#981a1a;">-</span>
 <span style="color:#000000;">rf deps</span>
 <span style="color:#981a1a;">/</span>
 <span style="color:#000000;">limonp include</span>
 <span style="color:#981a1a;">/</span>
 <span style="color:#000000;">cppjieba</span>
 <span style="color:#981a1a;">/</span>
 <span style="color:#333333;">, </span>
 <span style="color:#000000;">不然会编 译报错 </span>
</div> 
<p> </p> 
<h1><a name="t6"></a>7.编写搜索引擎模块Searcher</h1> 
<pre data-index="2" class="set-code-hide" name="code"><code class="language-cpp hljs"><ol class="hljs-ln hundred" style="width:1158px"><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="1"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-meta">#<span class="hljs-keyword">pragma</span> once</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="2"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-meta">#<span class="hljs-keyword">include</span> <span class="hljs-string">"index.hpp"</span></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="3"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-meta">#<span class="hljs-keyword">include</span> <span class="hljs-string"><algorithm></span></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="4"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-meta">#<span class="hljs-keyword">include</span> <span class="hljs-string"><jsoncpp/json/json.h></span></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="5"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-comment">// struct Com</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="6"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-comment">// {</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="7"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-comment">//     bool operator>(const InvertedElem& e1,const InvertedElem& e2)</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="8"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-comment">//     {</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="9"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-comment">//         return e1.weigth > e2.weigth;</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="10"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-comment">//     }</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="11"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-comment">// }</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="12"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-keyword">struct</span> <span class="hljs-title class_">InvertedElemPrint</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="13"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">{</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="14"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    <span class="hljs-type">uint64_t</span> doc_id;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="15"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    <span class="hljs-type">int</span> weight;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="16"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    std::vector<std::string> words;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="17"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    <span class="hljs-built_in">InvertedElemPrint</span>() : <span class="hljs-built_in">doc_id</span>(<span class="hljs-number">0</span>), <span class="hljs-built_in">weight</span>(<span class="hljs-number">0</span>) {}</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="18"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">};</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="19"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-keyword">namespace</span> ns_searcher</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="20"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">{</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="21"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    <span class="hljs-keyword">class</span> <span class="hljs-title class_">Searcher</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="22"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="23"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    <span class="hljs-keyword">private</span>:</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="24"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        ns_index::Index *index;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="25"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="26"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    <span class="hljs-keyword">public</span>:</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="27"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-built_in">Searcher</span>() = <span class="hljs-keyword">default</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="28"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        ~<span class="hljs-built_in">Searcher</span>() = <span class="hljs-keyword">default</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="29"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-function"><span class="hljs-type">void</span> <span class="hljs-title">InitSearcher</span><span class="hljs-params">(<span class="hljs-type">const</span> std::string &input)</span></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="30"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="31"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-comment">// 1.获取或者创建index对象</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="32"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            index = ns_index::Index::<span class="hljs-built_in">GetInstance</span>(); <span class="hljs-comment">//获得单例</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="33"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-comment">//std::cout << "获取单例成功" << std::endl;</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="34"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-built_in">LOG</span>(NORMAL, <span class="hljs-string">"获取index单例成功..."</span>);</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="35"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-comment">// 2.根据index对象建立索引</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="36"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            index-><span class="hljs-built_in">BuildIndex</span>(input);</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="37"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">           <span class="hljs-comment">// std::cout << "建立正排和倒排索引成功...." << std::endl;</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="38"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-built_in">LOG</span>(NORMAL, <span class="hljs-string">"建立正排和倒排索引成功..."</span>);</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="39"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="40"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="41"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-function">std::string <span class="hljs-title">GetDesc</span><span class="hljs-params">(<span class="hljs-type">const</span> std::string &html_src, <span class="hljs-type">const</span> std::string &word)</span></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="42"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="43"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-type">const</span> <span class="hljs-type">int</span> prev_step = <span class="hljs-number">50</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="44"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-type">const</span> <span class="hljs-type">int</span> next_step = <span class="hljs-number">100</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="45"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-comment">//找到首次出现的位置</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="46"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-comment">// std::size_t pos = html_src.find(word);  //错误原文档没有忽略大小写</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="47"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-keyword">auto</span> it = std::<span class="hljs-built_in">search</span>(html_src.<span class="hljs-built_in">begin</span>(), html_src.<span class="hljs-built_in">end</span>(), word.<span class="hljs-built_in">begin</span>(), word.<span class="hljs-built_in">end</span>(),</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="48"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                                  [](<span class="hljs-type">int</span> a, <span class="hljs-type">int</span> b)</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="49"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                                  { <span class="hljs-keyword">return</span> std::<span class="hljs-built_in">tolower</span>(a) == std::<span class="hljs-built_in">tolower</span>(b); });</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="50"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-type">int</span> pos = std::<span class="hljs-built_in">distance</span>(html_src.<span class="hljs-built_in">begin</span>(), it);</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="51"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-keyword">if</span> (pos == std::string::npos)</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="52"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="53"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                <span class="hljs-keyword">return</span> <span class="hljs-string">"None1"</span>; <span class="hljs-comment">//不存在这种情况</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="54"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="55"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-comment">// 2获取start end</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="56"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-type">int</span> start = <span class="hljs-number">0</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="57"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-type">int</span> end = html_src.<span class="hljs-built_in">size</span>() - <span class="hljs-number">1</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="58"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="59"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-keyword">if</span> (pos > start + prev_step)</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="60"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                start = pos - prev_step;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="61"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-keyword">if</span> (pos < end - next_step)</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="62"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                end = pos + next_step;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="63"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="64"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-keyword">if</span> (start >= end)</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="65"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                <span class="hljs-keyword">return</span> <span class="hljs-string">"None2"</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="66"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-keyword">return</span> html_src.<span class="hljs-built_in">substr</span>(start, end - start) + <span class="hljs-string">"..."</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="67"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="68"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-comment">// query：搜索关键字</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="69"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-comment">// josn_string:返回给用户的搜索结果</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="70"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-function"><span class="hljs-type">void</span> <span class="hljs-title">Search</span><span class="hljs-params">(<span class="hljs-type">const</span> std::string &query, std::string *json_string)</span></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="71"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="72"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-comment">// 1.[分词]：对我们的query进行按照searcher的要求进行分词</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="73"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            std::vector<std::string> words;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="74"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            ns_util::JiebaUtil::<span class="hljs-built_in">CurString</span>(query, &words);</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="75"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-comment">// 2.[触发]：就是根据分词的各个“词”，进行Index查找</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="76"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-comment">// ns_index::InvertedList inverted_list_all;</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="77"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            std::vector<InvertedElemPrint> inverted_list_all;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="78"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="79"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            std::unordered_map<<span class="hljs-type">uint64_t</span>, InvertedElemPrint> tokens_map;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="80"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-keyword">for</span> (<span class="hljs-keyword">auto</span> &e : words)</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="81"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="82"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                boost::<span class="hljs-built_in">to_lower</span>(e);</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="83"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                ns_index::InvertedList *inverted_list = index-><span class="hljs-built_in">GetInvertedList</span>(e);</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="84"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                <span class="hljs-keyword">if</span> (inverted_list == <span class="hljs-literal">nullptr</span>)</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="85"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                    <span class="hljs-keyword">continue</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="86"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                <span class="hljs-comment">//不完美的地方，可能有重复的文档</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="87"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                <span class="hljs-comment">//  inverted_list_all.insert(inverted_list_all.end(),inverted_list->begin(),inverted_list->end());</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="88"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                <span class="hljs-keyword">for</span> (<span class="hljs-type">const</span> <span class="hljs-keyword">auto</span> &elem : *inverted_list)</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="89"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="90"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                    <span class="hljs-keyword">auto</span> &item = tokens_map[elem.doc_id]; <span class="hljs-comment">//[]:如果存在直接获取，如果不存在新建</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="91"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                    <span class="hljs-comment">// item一定是doc_id相同的print节点</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="92"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                    item.doc_id = elem.doc_id;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="93"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                    item.weight += elem.weigth;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="94"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                    item.words.<span class="hljs-built_in">push_back</span>(elem.word);</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="95"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="96"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                <span class="hljs-keyword">for</span> (<span class="hljs-type">const</span> <span class="hljs-keyword">auto</span> &elem : *inverted_list)</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="97"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="98"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                    <span class="hljs-keyword">auto</span> &item = tokens_map[elem.doc_id]; <span class="hljs-comment">//[]:如果存在直接获取，如果不存在新建</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="99"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                    <span class="hljs-comment">// item一定是doc_id相同的print节点</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="100"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                    item.doc_id = elem.doc_id;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="101"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                    item.weight += elem.weigth;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="102"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                    item.words.<span class="hljs-built_in">push_back</span>(elem.word);</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="103"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="104"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                <span class="hljs-keyword">for</span> (<span class="hljs-type">const</span> <span class="hljs-keyword">auto</span> &item : tokens_map)</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="105"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="106"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                    inverted_list_all.<span class="hljs-built_in">push_back</span>(std::<span class="hljs-built_in">move</span>(item.second));</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="107"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="108"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="109"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-comment">// 3.[合并排序]：汇总查找结果，按照相关性（weight）降序排序</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="110"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-comment"><span class="hljs-comment">//  std::sort(inve rted_list_all.begin(), inverted_list_all.end(),\</span></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="111"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-comment">            //               []( const ns_index::InvertedElem e1,  const ns_index::InvertedElem e2){</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="112"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-comment">//                return e1.weigth > e2.weigth;</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="113"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-comment">//                });</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="114"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-comment">//  std::sort(inverted_list_all.begin(),inverted_list_all.end(),Com());</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="115"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="116"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            std::<span class="hljs-built_in">sort</span>(inverted_list_all.<span class="hljs-built_in">begin</span>(), inverted_list_all.<span class="hljs-built_in">end</span>(),</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="117"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                      [](<span class="hljs-type">const</span> InvertedElemPrint &e1, <span class="hljs-type">const</span> InvertedElemPrint &e2)</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="118"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                      {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="119"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                          <span class="hljs-keyword">return</span> e1.weight > e2.weight;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="120"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                      });</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="121"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-comment">// 4.[构建]：根据查找出来的结果，构建jsonc串 -----jsoncpp</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="122"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            Json::Value root;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="123"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-keyword">for</span> (<span class="hljs-keyword">auto</span> &item : inverted_list_all)</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="124"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="125"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                ns_index::DocInfo *doc = index-><span class="hljs-built_in">GetForWardIndex</span>(item.doc_id);</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="126"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                <span class="hljs-keyword">if</span> (doc == <span class="hljs-literal">nullptr</span>)</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="127"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                    <span class="hljs-keyword">continue</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="128"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="129"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                Json::Value elem;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="130"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                elem[<span class="hljs-string">"title"</span>] = doc->title;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="131"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                elem[<span class="hljs-string">"desc"</span>] = <span class="hljs-built_in">GetDesc</span>(doc->content, item.words[<span class="hljs-number">0</span>]); <span class="hljs-comment">// content是文档的去标签的结果，但是不是我们想要的，我们要的是一部分 TODO</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="132"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                elem[<span class="hljs-string">"url"</span>] = doc->url;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="133"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                <span class="hljs-comment">// for deubg, for delete</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="134"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                elem[<span class="hljs-string">"id"</span>] = (<span class="hljs-type">int</span>)item.doc_id;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="135"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                elem[<span class="hljs-string">"weight"</span>] = item.weight; <span class="hljs-comment">// int->string</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="136"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="137"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                root.<span class="hljs-built_in">append</span>(elem);</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="138"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="139"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="140"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            Json::StyledWriter writer;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="141"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            *json_string = writer.<span class="hljs-built_in">write</span>(root);</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="142"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="143"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    };</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="144"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">}</div></div></li></ol></code><div class="hide-preCode-box"><span class="hide-preCode-bt" data-report-view="{"spm":"1001.2101.3001.7365"}"><img class="look-more-preCode contentImg-no-view" src="https://1000bd.com/contentImg/2022/06/27/191644837.png" alt="" title=""></span></div><div class="hljs-button signin" data-title="登录后复制" data-report-click="{"spm":"1001.2101.3001.4334"}" onclick="hljs.signin(event)"></div></pre> 
<p><img alt="" height="527" src="https://1000bd.com/contentImg/2022/08/10/110934841.png"  > </p> 
<p><span style="color:#333333;">搜索：雷军小米</span><span style="color:#333333;"> -> </span><span style="color:#333333;">雷军、小米</span><span style="color:#333333;">-></span><span style="color:#333333;">查倒排</span><span style="color:#333333;">-></span><span style="color:#333333;">两个倒排拉链（文档</span><span style="color:#333333;">1</span><span style="color:#333333;">，文档</span><span style="color:#333333;">2</span><span style="color:#333333;">，文档</span><span style="color:#333333;">1</span><span style="color:#333333;">、文档</span><span style="color:#333333;">2</span><span style="color:#333333;">）</span> </p> 
<p><span style="color:#333333;"><strong>安装 </strong></span><span style="color:#333333;">jsoncpp </span> </p> 
<div>
 <span style="color:#000000;">sudo yum install </span>
 <span style="color:#981a1a;">-</span>
 <span style="color:#000000;">y jsoncpp</span>
 <span style="color:#981a1a;">-</span>
 <span style="color:#000000;">devel</span>
</div> 
<div>
 获取摘要
</div> 
<div>
 <img alt="" height="531" src="https://1000bd.com/contentImg/2022/08/10/110934949.png"  >
</div> 
<p><span style="color:#333333;"><strong>关于调试 </strong></span> </p> 
<div>
 <span style="color:#333333;">把整个文件读到内存 </span>
</div> 
<div>
 <span style="color:#333333;">先拿到标题，取到了标题。 </span>
</div> 
<div>
 <span style="color:#333333;">对整个文件进行去标签，其中是包括标签的！！！！ </span>
</div> 
<div>
 <span style="color:#333333;">实际如果一个词在</span>
 <span style="color:#333333;">title</span>
 <span style="color:#333333;">中出现，一定会被当标题 和 当内容分别被统计一次！！！</span>
</div> 
<h1><a name="t7"></a>8.编写http server模块</h1> 
<div>
 <span style="color:#000000;">cpp</span>
 <span style="color:#981a1a;">-</span>
 <span style="color:#000000;">httplib</span>
 <span style="color:#000000;">库：</span>
 <span style="color:#000000;">https</span>
 <span style="color:#333333;">:</span>
 <span style="color:#aa5500;">//gitee.com/zhangkt1995/cpp-httplib?_from=gitee_search </span>
</div> 
<div>
 <span style="color:#000000;">注意：</span>
 <span style="color:#000000;">cpp</span>
 <span style="color:#981a1a;">-</span>
 <span style="color:#000000;">httplib</span>
 <span style="color:#000000;">在使用的时候需要使用较新版本的</span>
 <span style="color:#000000;">gcc</span>
 <span style="color:#000000;">，</span>
 <span style="color:#000000;">centos </span>
 <span style="color:#116644;">7</span>
 <span style="color:#000000;">下默认</span>
 <span style="color:#000000;">gcc </span>
 <span style="color:#116644;">4.8.5 </span>
</div> 
<div></div> 
<div> 
 <div>
  <span style="color:#000000;">sudo yum install centos</span>
  <span style="color:#981a1a;">-</span>
  <span style="color:#000000;">release</span>
  <span style="color:#981a1a;">-</span>
  <span style="color:#000000;">scl scl</span>
  <span style="color:#981a1a;">-</span>
  <span style="color:#000000;">utils</span>
  <span style="color:#981a1a;">-</span>
  <span style="color:#000000;">build</span>
 </div> 
 <div>
  yum -y install devtoolset-9-gcc devtoolset-9-gcc-c++ devtoolset-9-binutils # 安装gcc和g++
 </div> 
 <div> 
  <div>
   <span style="color:#000000;">scl enable devtoolset</span>
   <span style="color:#981a1a;">-</span>
   <span style="color:#116644;">7 </span>
   <span style="color:#000000;">bash</span>
  </div> 
 </div> 
 <div> 
  <div>
   <span style="color:#000000;">ls </span>
   <span style="color:#981a1a;">/</span>
   <span style="color:#000000;">opt</span>
   <span style="color:#981a1a;">/</span>
   <span style="color:#000000;">rh</span>
   <span style="color:#981a1a;">/  </span>
   <span style="color:#aa5500;">//</span>
   <span style="color:#aa5500;">启动： 细节，命令行启动只能在本会话有效</span>
  </div> 
  <div>
   <span style="color:#aa5500;">//</span>
   <span style="color:#aa5500;">可选：如果想每次登陆的时候，都是较新的</span>
   <span style="color:#aa5500;">gcc </span>
  </div> 
  <div> 
   <div></div> 
   <div>
    <span style="color:#000000;">永久更新 vim ~</span>
    <span style="color:#981a1a;">/</span>
    <span style="color:#333333;">.</span>
    <span style="color:#000000;">bash_profile 在文本末尾添加 scl enable devtoolset</span>
    <span style="color:#981a1a;">-</span>
    <span style="color:#116644;">7 </span>
    <span style="color:#000000;">bash</span>
   </div> 
   <div>
    <span style="color:#333333;"><strong>安装 </strong></span>
    <span style="color:#333333;">cpp</span>
    <span style="color:#333333;"><strong>-</strong></span>
    <span style="color:#333333;">httplib </span>
   </div> 
   <div> 
    <div>
     <span style="color:#000000;">最新的</span>
     <span style="color:#000000;">cpp</span>
     <span style="color:#981a1a;">-</span>
     <span style="color:#000000;">httplib</span>
     <span style="color:#000000;">在使用的时候，如果</span>
     <span style="color:#000000;">gcc</span>
     <span style="color:#000000;">不是特别新的话有可能会有运行时错误的问题 </span>
    </div> 
    <div>
     <span style="color:#000000;">建议：</span>
     <span style="color:#000000;">cpp</span>
     <span style="color:#981a1a;">-</span>
     <span style="color:#000000;">httplib </span>
     <span style="color:#116644;">0.7.15 </span>
    </div> 
    <div>
     <span style="color:#000000;">下载</span>
     <span style="color:#000000;">zip</span>
     <span style="color:#000000;">安装包，上传到服务器即可 或者直接get clone也行，在gitee上有项目，直接搜索cpp-hpplib</span>
    </div> 
    <div> 
     <pre data-index="3" class="set-code-hide" name="code"><code class="language-cpp hljs"><ol class="hljs-ln" style="width:738px"><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="1"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-meta">#<span class="hljs-keyword">include</span> <span class="hljs-string">"cpp-httplib/httplib.h"</span></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="2"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-meta">#<span class="hljs-keyword">include</span> <span class="hljs-string">"searcher.hpp"</span></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="3"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-type">const</span> std::string root_path = <span class="hljs-string">"./wwwroot"</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="4"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-type">const</span> std::string input =<span class="hljs-string">"data/raw_html/raw.txt"</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="5"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-function"><span class="hljs-type">int</span> <span class="hljs-title">main</span><span class="hljs-params">()</span></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="6"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">{ </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="7"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    ns_searcher::Searcher searcher;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="8"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    searcher.<span class="hljs-built_in">InitSearcher</span>(input);</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="9"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    httplib::Server svr; </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="10"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    svr.<span class="hljs-built_in">set_base_dir</span>(root_path.<span class="hljs-built_in">c_str</span>()); </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="11"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    svr.<span class="hljs-built_in">Get</span>(<span class="hljs-string">"/s"</span>, [&searcher](<span class="hljs-type">const</span> httplib::Request &req, httplib::Response &rsp){</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="12"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-keyword">if</span>(!req.<span class="hljs-built_in">has_param</span>(<span class="hljs-string">"word"</span>))</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="13"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="14"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            rsp.<span class="hljs-built_in">set_content</span>(<span class="hljs-string">"必须要有搜索关键字！"</span>,<span class="hljs-string">"text/plain: chatset=utf-8"</span>);</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="15"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-keyword">return</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="16"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="17"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        std::string word = req.<span class="hljs-built_in">get_param_value</span>(<span class="hljs-string">"word"</span>);</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="18"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">       <span class="hljs-comment">// std::cout<<"用户正在搜索："<<word<<std::endl;</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="19"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-built_in">LOG</span>(NORMAL, <span class="hljs-string">"用户搜索的: "</span> + word);</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="20"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        std::string json_string;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="21"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        searcher.<span class="hljs-built_in">Search</span>(word,&json_string);</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="22"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        rsp.<span class="hljs-built_in">set_content</span>(json_string,<span class="hljs-string">"application/json"</span>);</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="23"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        });</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="24"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-comment">//rsp.set_content("你好,世界!", "text/plain; charset=utf-8"); </span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="25"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-built_in">LOG</span>(NORMAL, <span class="hljs-string">"服务器启动成功..."</span>);</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="26"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        svr.<span class="hljs-built_in">listen</span>(<span class="hljs-string">"0.0.0.0"</span>, <span class="hljs-number">8081</span>); <span class="hljs-keyword">return</span> <span class="hljs-number">0</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="27"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">}</div></div></li></ol></code><div class="hide-preCode-box"><span class="hide-preCode-bt" data-report-view="{"spm":"1001.2101.3001.7365"}"><img class="look-more-preCode contentImg-no-view" src="https://1000bd.com/contentImg/2022/06/27/191644837.png" alt="" title=""></span></div><div class="hljs-button signin" data-title="登录后复制" data-report-click="{"spm":"1001.2101.3001.4334"}" onclick="hljs.signin(event)"></div></pre> 
     <p> 
    </div> 
   </div> 
  </div> 
 </div> 
</div> 
<h1><a name="t8"></a>9.编写前段模块</h1> 
<p> 
<pre data-index="4" class="set-code-hide" name="code"><code class="language-html hljs language-xml"><ol class="hljs-ln hundred" style="width:1128px"><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="1"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-meta"><!DOCTYPE <span class="hljs-keyword">html</span>></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="2"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-tag"><<span class="hljs-name">html</span> <span class="hljs-attr">lang</span>=<span class="hljs-string">"en"</span>></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="3"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="4"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-tag"><<span class="hljs-name">head</span>></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="5"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    <span class="hljs-tag"><<span class="hljs-name">meta</span> <span class="hljs-attr">charset</span>=<span class="hljs-string">"UTF-8"</span>></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="6"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    <span class="hljs-tag"><<span class="hljs-name">meta</span> <span class="hljs-attr">http-equiv</span>=<span class="hljs-string">"X-UA-Compatible"</span> <span class="hljs-attr">content</span>=<span class="hljs-string">"IE=edge"</span>></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="7"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    <span class="hljs-tag"><<span class="hljs-name">meta</span> <span class="hljs-attr">name</span>=<span class="hljs-string">"viewport"</span> <span class="hljs-attr">content</span>=<span class="hljs-string">"width=device-width, initial-scale=1.0"</span>></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="8"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    <span class="hljs-tag"><<span class="hljs-name">script</span> <span class="hljs-attr">src</span>=<span class="hljs-string">"http://code.jquery.com/jquery-2.1.1.min.js"</span>></span><span class="hljs-tag"></<span class="hljs-name">script</span>></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="9"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    <span class="hljs-tag"><<span class="hljs-name">title</span>></span>boost 搜索引擎<span class="hljs-tag"></<span class="hljs-name">title</span>></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="10"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    <span class="hljs-tag"><<span class="hljs-name">style</span>></span><span class="language-css"></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="11"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-comment">/* 去掉网页中的所有的默认内外边距，html的盒子模型 */</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="12"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        * {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="13"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-comment">/* 设置外边距 */</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="14"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-attribute">margin</span>: <span class="hljs-number">0</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="15"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-comment">/* 设置内边距 */</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="16"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-attribute">padding</span>: <span class="hljs-number">0</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="17"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="18"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="19"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-comment">/* 将我们的body内的内容100%和html的呈现吻合 */</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="20"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-selector-tag">html</span>,</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="21"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-selector-tag">body</span> {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="22"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-attribute">height</span>: <span class="hljs-number">100%</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="23"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="24"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="25"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-comment">/* 类选择器.container */</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="26"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-selector-class">.container</span> {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="27"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-comment">/* 设置div的宽度 */</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="28"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-attribute">width</span>: <span class="hljs-number">800px</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="29"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-comment">/* 通过设置外边距达到居中对齐的目的 */</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="30"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-attribute">margin</span>: <span class="hljs-number">0px</span> auto;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="31"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-comment">/* 设置外边距的上边距，保持元素和网页的上部距离 */</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="32"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-attribute">margin-top</span>: <span class="hljs-number">15px</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="33"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="34"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="35"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-comment">/* 复合选择器，选中container 下的 search */</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="36"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-selector-class">.container</span> <span class="hljs-selector-class">.search</span> {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="37"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-comment">/* 宽度与父标签保持一致 */</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="38"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-attribute">width</span>: <span class="hljs-number">100%</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="39"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-comment">/* 高度设置为52px */</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="40"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-attribute">height</span>: <span class="hljs-number">52px</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="41"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="42"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="43"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-comment">/* 先选中input标签， 直接设置标签的属性，先要选中， input：标签选择器*/</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="44"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-comment">/* input在进行高度设置的时候，没有考虑边框的问题 */</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="45"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-selector-class">.container</span> <span class="hljs-selector-class">.search</span> <span class="hljs-selector-tag">input</span> {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="46"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-comment">/* 设置left浮动 */</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="47"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-attribute">float</span>: left;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="48"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-attribute">width</span>: <span class="hljs-number">600px</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="49"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-attribute">height</span>: <span class="hljs-number">50px</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="50"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-comment">/* 设置边框属性：边框的宽度，样式，颜色 */</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="51"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-attribute">border</span>: <span class="hljs-number">1px</span> solid black;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="52"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-comment">/* 去掉input输入框的有边框 */</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="53"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-attribute">border-right</span>: none;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="54"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-comment">/* 设置内边距，默认文字不要和左侧边框紧挨着 */</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="55"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-attribute">padding-left</span>: <span class="hljs-number">10px</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="56"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-comment">/* 设置input内部的字体的颜色和样式 */</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="57"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-attribute">color</span>: <span class="hljs-number">#CCC</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="58"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-attribute">font-size</span>: <span class="hljs-number">15px</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="59"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="60"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="61"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-comment">/* 先选中button标签， 直接设置标签的属性，先要选中， button：标签选择器*/</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="62"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-selector-class">.container</span> <span class="hljs-selector-class">.search</span> <span class="hljs-selector-tag">button</span> {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="63"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="64"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-comment">/* 设置left浮动 */</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="65"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-attribute">float</span>: left;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="66"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-attribute">width</span>: <span class="hljs-number">150px</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="67"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-attribute">height</span>: <span class="hljs-number">52px</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="68"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-comment">/* 设置button的背景颜色，#4e6ef2 */</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="69"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-attribute">background-color</span>: <span class="hljs-number">#4e6ef2</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="70"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-comment">/* 设置button中的字体颜色 */</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="71"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-attribute">color</span>: <span class="hljs-number">#FFF</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="72"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-comment">/* 设置字体的大小 */</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="73"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-attribute">font-size</span>: <span class="hljs-number">19px</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="74"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-attribute">font-family</span>: Georgia, <span class="hljs-string">'Times New Roman'</span>, Times, serif;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="75"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="76"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="77"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-selector-class">.container</span> <span class="hljs-selector-class">.result</span> {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="78"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-attribute">width</span>: <span class="hljs-number">100%</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="79"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="80"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="81"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-selector-class">.container</span> <span class="hljs-selector-class">.result</span> <span class="hljs-selector-class">.item</span> {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="82"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-attribute">margin-top</span>: <span class="hljs-number">15px</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="83"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="84"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="85"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-selector-class">.container</span> <span class="hljs-selector-class">.result</span> <span class="hljs-selector-class">.item</span> <span class="hljs-selector-tag">a</span> {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="86"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-comment">/* 设置为块级元素，单独站一行 */</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="87"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-attribute">display</span>: block;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="88"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-comment">/* a标签的下划线去掉 */</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="89"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-attribute">text-decoration</span>: none;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="90"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-comment">/* 设置a标签中的文字的字体大小 */</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="91"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-attribute">font-size</span>: <span class="hljs-number">20px</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="92"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-comment">/* 设置字体的颜色 */</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="93"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-attribute">color</span>: <span class="hljs-number">#4e6ef2</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="94"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="95"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="96"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-selector-class">.container</span> <span class="hljs-selector-class">.result</span> <span class="hljs-selector-class">.item</span> <span class="hljs-selector-tag">a</span><span class="hljs-selector-pseudo">:hover</span> {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="97"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-comment">/*设置鼠标放在a之上的动态效果*/</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="98"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-attribute">text-decoration</span>: underline;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="99"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="100"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="101"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-selector-class">.container</span> <span class="hljs-selector-class">.result</span> <span class="hljs-selector-class">.item</span> <span class="hljs-selector-tag">p</span> {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="102"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-attribute">margin-top</span>: <span class="hljs-number">5px</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="103"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-attribute">font-size</span>: <span class="hljs-number">16px</span>;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="104"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-attribute">font-family</span>: <span class="hljs-string">'Lucida Sans'</span>, <span class="hljs-string">'Lucida Sans Regular'</span>, <span class="hljs-string">'Lucida Grande'</span>, <span class="hljs-string">'Lucida Sans Unicode'</span>, Geneva, Verdana, sans-serif;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="105"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="106"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="107"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-selector-class">.container</span> <span class="hljs-selector-class">.result</span> <span class="hljs-selector-class">.item</span> <span class="hljs-selector-tag">i</span> {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="108"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-comment">/* 设置为块级元素，单独站一行 */</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="109"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-attribute">display</span>: block;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="110"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-comment">/* 取消斜体风格 */</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="111"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-attribute">font-style</span>: normal;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="112"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-attribute">color</span>: green;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="113"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="114"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    <span class="hljs-tag"></<span class="hljs-name">style</span>></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="115"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-tag"></<span class="hljs-name">head</span>></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="116"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="117"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-tag"><<span class="hljs-name">body</span>></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="118"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    <span class="hljs-tag"><<span class="hljs-name">div</span> <span class="hljs-attr">class</span>=<span class="hljs-string">"container"</span>></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="119"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-tag"><<span class="hljs-name">div</span> <span class="hljs-attr">class</span>=<span class="hljs-string">"search"</span>></span> <span class="hljs-tag"><<span class="hljs-name">input</span> <span class="hljs-attr">type</span>=<span class="hljs-string">"text"</span> <span class="hljs-attr">value</span>=<span class="hljs-string">"输入搜索关键字..."</span>></span> </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="120"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-tag"><<span class="hljs-name">button</span> <span class="hljs-attr">onclick</span>=<span class="hljs-string">"Search()"</span>></span>搜索一下<span class="hljs-tag"></<span class="hljs-name">button</span>></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="121"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">         <span class="hljs-tag"></<span class="hljs-name">div</span>></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="122"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-tag"><<span class="hljs-name">div</span> <span class="hljs-attr">class</span>=<span class="hljs-string">"result"</span>></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="123"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-comment"><span class="hljs-comment"><!-- <div class="item"> <a href="#">这是标题</a></span></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="124"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-comment">                <p>这是摘要这是摘要这是摘要这是摘要这是摘要这是摘要这是摘要这是摘要这是摘要这是摘要这是摘 要这是摘要这是摘要这是摘要这是摘要</p></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="125"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-comment">                <i>https://search.gitee.com/?skin=rec&type=repository&q=cpp-httplib</i></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="126"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-comment">            </div></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="127"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-comment">            <div class="item"> <a href="#">这是标题</a></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="128"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-comment">                <p>这是摘要这是摘要这是摘要这是摘要这是摘要这是摘要这是摘要这是摘要这是摘要这是摘要这是摘 要这是摘要这是摘要这是摘要这是摘要</p></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="129"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-comment">                <i>https://search.gitee.com/?skin=rec&type=repository&q=cpp-httplib</i></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="130"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-comment">            </div></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="131"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-comment">            <div class="item"> <a href="#">这是标题</a></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="132"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-comment">                <p>这是摘要这是摘要这是摘要这是摘要这是摘要这是摘要这是摘要这是摘要这是摘要这是摘要这是摘 要这是摘要这是摘要这是摘要这是摘要</p></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="133"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-comment">                <i>https://search.gitee.com/?skin=rec&type=repository&q=cpp-httplib</i></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="134"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-comment">            </div></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="135"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-comment">            <div class="item"> <a href="#">这是标题</a></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="136"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-comment">                <p>这是摘要这是摘要这是摘要这是摘要这是摘要这是摘要这是摘要这是摘要这是摘要这是摘要这是摘 要这是摘要这是摘要这是摘要这是摘要</p></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="137"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-comment">                <i>https://search.gitee.com/?skin=rec&type=repository&q=cpp-httplib</i></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="138"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-comment">            </div></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="139"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-comment">            <div class="item"> <a href="#">这是标题</a></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="140"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-comment">                <p>这是摘要这是摘要这是摘要这是摘要这是摘要这是摘要这是摘要这是摘要这是摘要这是摘要这是摘 要这是摘要这是摘要这是摘要这是摘要</p></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="141"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-comment">                <i>https://search.gitee.com/?skin=rec&type=repository&q=cpp-httplib</i></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="142"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-comment">            </div> --></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="143"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-tag"></<span class="hljs-name">div</span>></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="144"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    <span class="hljs-tag"></<span class="hljs-name">div</span>></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="145"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    <span class="hljs-tag"><<span class="hljs-name">script</span>></span><span class="language-javascript"></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="146"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-keyword">function</span> <span class="hljs-title function_">Search</span>(<span class="hljs-params"></span>) { <span class="hljs-comment">// 是浏览器的一个弹出框 </span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="147"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-comment">// alert("hello js!"); </span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="148"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-comment">//1. 提取数据, $可以理解成就是JQuery的别称</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="149"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-keyword">let</span> query = $(<span class="hljs-string">".container .search input"</span>).<span class="hljs-title function_">val</span>();</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="150"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-variable language_">console</span>.<span class="hljs-title function_">log</span>(<span class="hljs-string">"query = "</span> + query);</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="151"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-comment">//console是浏览器的对话框，可以用来进行查看js数据 </span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="152"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-comment">//2. 发起http请求,ajax: 属于一个和后端进行数据交互的函数，JQuery中的 </span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="153"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            $.<span class="hljs-title function_">ajax</span>({</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="154"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                <span class="hljs-attr">type</span>: <span class="hljs-string">"GET"</span>,</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="155"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                <span class="hljs-attr">url</span>: <span class="hljs-string">"/s?word="</span> + query,</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="156"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                <span class="hljs-attr">success</span>: <span class="hljs-keyword">function</span> (<span class="hljs-params">data</span>) {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="157"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                    <span class="hljs-variable language_">console</span>.<span class="hljs-title function_">log</span>(data);</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="158"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                    <span class="hljs-title class_">BuildHtml</span>(data);</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="159"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="160"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            });</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="161"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="162"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        <span class="hljs-keyword">function</span> <span class="hljs-title function_">BuildHtml</span>(<span class="hljs-params">data</span>) {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="163"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-comment">// 获取html中的result标签</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="164"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-keyword">let</span> result_lable = $(<span class="hljs-string">".container .result"</span>);</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="165"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-comment">// 清空历史搜索结果</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="166"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            result_lable.<span class="hljs-title function_">empty</span>();</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="167"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            <span class="hljs-keyword">for</span> (<span class="hljs-keyword">let</span> elem <span class="hljs-keyword">of</span> data) {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="168"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                <span class="hljs-comment">// console.log(elem.title); </span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="169"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                <span class="hljs-comment">// console.log(elem.url);</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="170"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                <span class="hljs-keyword">let</span> a_lable = $(<span class="hljs-string">"<a>"</span>, {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="171"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                    <span class="hljs-attr">text</span>: elem.<span class="hljs-property">title</span>, </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="172"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                    <span class="hljs-attr">href</span>: elem.<span class="hljs-property">url</span>,</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="173"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                    <span class="hljs-comment">// 跳转到新的页面 </span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="174"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                    <span class="hljs-attr">target</span>: <span class="hljs-string">"_blank"</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="175"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                });</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="176"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                <span class="hljs-keyword">let</span> p_lable = $(<span class="hljs-string">"<p>"</span>, {</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="177"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                     <span class="hljs-attr">text</span>: elem.<span class="hljs-property">desc</span> </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="178"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                    });</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="179"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                <span class="hljs-keyword">let</span> i_lable = $(<span class="hljs-string">"<i>"</span>, { </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="180"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                    <span class="hljs-attr">text</span>: elem.<span class="hljs-property">url</span> </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="181"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                });</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="182"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                <span class="hljs-keyword">let</span> div_lable = $(<span class="hljs-string">"<div>"</span>, { </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="183"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                    <span class="hljs-attr">class</span>: <span class="hljs-string">"item"</span> </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="184"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                });</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="185"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                a_lable.<span class="hljs-title function_">appendTo</span>(div_lable);</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="186"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                p_lable.<span class="hljs-title function_">appendTo</span>(div_lable);</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="187"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                i_lable.<span class="hljs-title function_">appendTo</span>(div_lable);</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="188"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">                div_lable.<span class="hljs-title function_">appendTo</span>(result_lable);</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="189"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">            }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="190"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">        }</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="191"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    <span class="hljs-tag"></<span class="hljs-name">script</span>></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="192"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-tag"></<span class="hljs-name">body</span>></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="193"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="194"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-tag"></<span class="hljs-name">html</span>></span></div></div></li></ol></code><div class="hide-preCode-box"><span class="hide-preCode-bt" data-report-view="{"spm":"1001.2101.3001.7365"}"><img class="look-more-preCode contentImg-no-view" src="https://1000bd.com/contentImg/2022/06/27/191644837.png" alt="" title=""></span></div><div class="hljs-button signin" data-title="登录后复制" data-report-click="{"spm":"1001.2101.3001.4334"}" onclick="hljs.signin(event)"></div></pre> 
<p>makefile</p> 
<pre data-index="5" class="set-code-hide" name="code"><code class="hljs language-ruby"><ol class="hljs-ln" style="width:100%"><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="1"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">Parser=parser</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="2"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">DUG=debug</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="3"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">HTTP_SEARCHER=http_searcher</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="4"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">cc=g++</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="5"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="6"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">.<span class="hljs-symbol">PHONY:</span>all</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="7"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-symbol">all:</span><span class="hljs-variable">$(</span>Parser) <span class="hljs-variable">$(</span>DUG) <span class="hljs-variable">$(</span>HTTP_SEARCHER)</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="8"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-variable">$(</span>Parser)<span class="hljs-symbol">:parser</span>.cc</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="9"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">	<span class="hljs-variable">$(</span>cc) -o <span class="hljs-variable">$@</span> <span class="hljs-variable">$^</span> -lboost_system -lboost_filesystem -std=c++<span class="hljs-number">11</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="10"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-variable">$(</span>DUG)<span class="hljs-symbol">:debug</span>.cc</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="11"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">	<span class="hljs-variable">$(</span>cc) -o <span class="hljs-variable">$@</span> <span class="hljs-variable">$^</span>  -ljsoncpp -std=c++<span class="hljs-number">11</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="12"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-variable">$(</span>HTTP_SEARCHER)<span class="hljs-symbol">:http_searcher</span>.cc</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="13"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">	<span class="hljs-variable">$(</span>cc) -o <span class="hljs-variable">$@</span> <span class="hljs-variable">$^</span>  -ljsoncpp -lpthread -std=c++<span class="hljs-number">11</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="14"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="15"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">	</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="16"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">.<span class="hljs-symbol">PHONY:</span>clean</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="17"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-symbol">clean:</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="18"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">	rm -rf <span class="hljs-variable">$(</span>Parser) <span class="hljs-variable">$(</span>DUG) <span class="hljs-variable">$(</span>HTTP_SEARCHER)</div></div></li></ol></code><div class="hide-preCode-box"><span class="hide-preCode-bt" data-report-view="{"spm":"1001.2101.3001.7365"}"><img class="look-more-preCode contentImg-no-view" src="https://1000bd.com/contentImg/2022/06/27/191644837.png" alt="" title=""></span></div><div class="hljs-button signin" data-title="登录后复制" data-report-click="{"spm":"1001.2101.3001.4334"}" onclick="hljs.signin(event)"></div></pre> 
<p> </p> 
<h1><a name="t9"></a>10.项目效果</h1> 
<p><img alt="" height="1042" src="https://1000bd.com/contentImg/2022/08/10/110935122.png"  ></p> 
<p> <img alt="" height="894" src="https://1000bd.com/contentImg/2022/08/10/110935425.png"  ></p> 
<h1><a name="t10"></a> 11.<span style="color:#333333;"><strong>添加日志 </strong></span></h1> 
<pre data-index="6" class="set-code-hide" name="code"><code class="language-cpp hljs"><ol class="hljs-ln" style="width:1234px"><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="1"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-meta">#<span class="hljs-keyword">pragma</span> once</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="2"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="3"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-meta">#<span class="hljs-keyword">include</span> <span class="hljs-string"><iostream></span></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="4"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-meta">#<span class="hljs-keyword">include</span> <span class="hljs-string"><string></span></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="5"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-meta">#<span class="hljs-keyword">include</span> <span class="hljs-string"><ctime></span></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="6"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="7"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-meta">#<span class="hljs-keyword">define</span> NORMAL  1</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="8"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-meta">#<span class="hljs-keyword">define</span> WARNING 2</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="9"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-meta">#<span class="hljs-keyword">define</span> DEBUG   3</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="10"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-meta">#<span class="hljs-keyword">define</span> FATAL   4</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="11"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="12"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-meta">#<span class="hljs-keyword">define</span> LOG(LEVEL, MESSAGE) log(#LEVEL, MESSAGE, __FILE__, __LINE__)</span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="13"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="14"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"><span class="hljs-function"><span class="hljs-type">void</span> <span class="hljs-title">log</span><span class="hljs-params">(std::string level, std::string message, std::string file, <span class="hljs-type">int</span> line)</span></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="15"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">{</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="16"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">    std::cout << <span class="hljs-string">"["</span> << level << <span class="hljs-string">"]"</span> << <span class="hljs-string">"["</span> << <span class="hljs-built_in">time</span>(<span class="hljs-literal">nullptr</span>) << <span class="hljs-string">"]"</span> << <span class="hljs-string">"["</span> << message << <span class="hljs-string">"]"</span> << <span class="hljs-string">"["</span> << file << <span class="hljs-string">" : "</span> << line << <span class="hljs-string">"]"</span> << std::endl;</div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="17"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line">}</div></div></li></ol></code><div class="hide-preCode-box"><span class="hide-preCode-bt" data-report-view="{"spm":"1001.2101.3001.7365"}"><img class="look-more-preCode contentImg-no-view" src="https://1000bd.com/contentImg/2022/06/27/191644837.png" alt="" title=""></span></div><div class="hljs-button signin" data-title="登录后复制" data-report-click="{"spm":"1001.2101.3001.4334"}" onclick="hljs.signin(event)"></div></pre> 
<div>
 <span style="color:#333333;"><strong>结项总结 </strong></span>
</div> 
<div>
 <span style="color:#333333;"><strong>项目扩展方向</strong></span>
</div> 
<div> 
 <div>
  <span style="color:#333333;">1. </span>
  <span style="color:#333333;">建立整站搜索 </span>
 </div> 
 <div>
  <span style="color:#333333;">2. </span>
  <span style="color:#333333;">设计一个在线更新的方案，信号，爬虫，完成整个服务器的设计 </span>
 </div> 
 <div>
  <span style="color:#333333;">3. </span>
  <span style="color:#333333;">不使用组件，而是自己设计一下对应的各种方案（有时间，有精力） </span>
 </div> 
 <div>
  <span style="color:#333333;">4. </span>
  <span style="color:#333333;">在我们的搜索引擎中，添加竞价排名</span>
  <span style="color:#333333;">(</span>
  <span style="color:#333333;">强烈推荐</span>
  <span style="color:#333333;">) </span>
 </div> 
 <div>
  <span style="color:#333333;">5. </span>
  <span style="color:#333333;">热次统计，智能显示搜索关键词（字典树，优先级队列）</span>
  <span style="color:#333333;">(</span>
  <span style="color:#333333;">比较推荐</span>
  <span style="color:#333333;">) </span>
 </div> 
 <div>
  <span style="color:#333333;">6. </span>
  <span style="color:#333333;">设置登陆注册，引入对</span>
  <span style="color:#333333;">mysql</span>
  <span style="color:#333333;">的使用</span>
  <span style="color:#333333;">(</span>
  <span style="color:#333333;">比较推荐的</span>
  <span style="color:#333333;">)</span>
 </div> 
 <div></div> 
 <div>
  <span style="color:#333333;">项目源码：</span>
  <a class="has-card" href="https://github.com/liutao932/boost" title="liutao932/boost (github.com)"><span class="link-card-box"><span class="link-title">liutao932/boost (github.com)</span><span class="link-link"><img class="link-link-icon" src="https://1000bd.com/contentImg/2022/06/15/100806196.png" alt="icon-default.png?t=M666">https://github.com/liutao932/boost</span></span></a>
 </div> 
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                    原文地址：https://blog.csdn.net/qq_57283958/article/details/125946310
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