• OA项目之待开会议&所有会议

    目录

    1.准备工作

    2.待开会议前后端

    MeetingInfoDao：

    MeetingInfoAction:

    1.准备工作

     

     sq语句：

    1.待开会议：

    select CONCAT(canyuze,',',liexize,',',zhuchiren)
    , a.id,a.title,a.content,a.canyuze,a.liexize,a.zhuchiren, b.`name` zhuchirenname,a.location, 
    DATE_FORMAT(a.startTime,'%Y-%m-%d %H-%m-%s') startTime, 
    DATE_FORMAT(a.endTime,'%Y-%m-%d %H-%m-%s') endTime, 
    a.state, 
    ( 
            case a.state 
            when 0 then '取消会议' 
            when 1 then '新建' 
            when 2 then '待审核' 
            when 3 then '驳回' 
            when 4 then '待开' 
            when 5 then '进行中' 
            when 6 then '开启投票' 
            when 7 then '结束会议' 
            else '其他' end 
    ) meetingstate, 
    a.seatPic,a.remark,a.auditor, 
    c.`name` auditorname from t_oa_meeting_info a 
    inner join t_oa_user b on a.zhuchiren = b.id 
    left join t_oa_user c on a.auditor = c.id where 1=1 and state
    =4 and FIND_IN_SET(6, CONCAT(canyuze,',',liexize,',',zhuchiren))

    运行结果：

     2.所有会议：

    select
     a.id,a.title,a.content,a.canyuze,a.liexize,a.zhuchiren, b.`name` zhuchirenname,a.location, 
    DATE_FORMAT(a.startTime,'%Y-%m-%d %H-%m-%s') startTime, 
    DATE_FORMAT(a.endTime,'%Y-%m-%d %H-%m-%s') endTime, 
    a.state, 
    ( 
            case a.state 
            when 0 then '取消会议' 
            when 1 then '新建' 
            when 2 then '待审核' 
            when 3 then '驳回' 
            when 4 then '待开' 
            when 5 then '进行中' 
            when 6 then '开启投票' 
            when 7 then '结束会议' 
            else '其他' end 
    ) meetingstate, 
    a.seatPic,a.remark,a.auditor, 
    c.`name` auditorname from t_oa_meeting_info a 
    inner join t_oa_user b on a.zhuchiren = b.id 
    left join t_oa_user c on a.auditor = c.id where 1=1 and state
    =4 and FIND_IN_SET(6, CONCAT(a.canyuze,',',a.liexize,',',a.zhuchiren,',',IFNULL(a.auditor,-1)))

    2.待开会议前后端

    jsp界面：

    1. <%@ page language="java" contentType="text/html; charset=UTF-8"
    2.     pageEncoding="UTF-8"%>
    3. <%@include file="/common/header.jsp"%>
    4. html>
    5. <html>
    6. <head>
    7. <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
    8. <script type="text/javascript" src="${pageContext.request.contextPath }/static/js/meeting/meetingWaiting.js">script>
    9. head>
    10. <style>
    11. body{
    12. 	margin:15px;
    13. }
    14. .layui-table-cell {height: inherit;}
    15. .layui-layer-page .layui-layer-content {  overflow: visible !important;}
    16. style>
    17. <body>
    18. 	<div class="layui-form-item">
    19. 		<div class="layui-inline">
    20. 			<label class="layui-form-label">会议标题：label>
    21. 			<div class="layui-input-inline">
    22. 				<input type="hidden" id="userid" value="${sessionScope.user.id }"/>
    23. 				<input type="text" id="title" autocomplete="off"
    24. 					class="layui-input">
    25. 			div>
    26. 		div>
    27. 		<div class="layui-inline">
    28. 			<button id="btn_meeting_search" class="layui-btn layui-btn-normal">
    29. 				<i class="layui-icon">i> 查询
    30. 			button>
    31. 		div>
    32. 	div>
    33. 	<table style="margin-top: -15px;" id="tb_meeting" lay-filter="tb_meeting">table>
    34. body>
    35. html>

    js界面：

    1. let layer,form,table,$;
    2. var row;
    3. layui.use(['layer','form','table'],function(){
    4.     layer=layui.layer,form=layui.form,table=layui.table,$=layui.jquery;
    5.     
    6.     //初始化会议列表
    7.     initMeeting();
    8.    
    9.     //绑定查询按钮的点击事件
    10.     $('#btn_meeting_search').click(function(){
    11.         query();
    12.     });
    13. });
    14.  
    15. //1.初始化会议列表
    16. function initMeeting(){
    17.     table.render({           //执行渲染
    18.         elem: '#tb_meeting',   //指定原始表格元素选择器（推荐id选择器）
    19.         height: 400,         //自定义高度
    20.         loading: false,      //是否显示加载条（默认 true）
    21.         cols: [[             //设置表头
    22.             {field: 'title', title: '会议标题', width: 180},
    23.             {field: 'location', title: '会议地点', width: 120},
    24.             {field: 'startTime', title: '开始时间', width: 180},
    25.             {field: 'endTime', title: '结束时间', width: 180},
    26.             {field: 'meetingstate', title: '会议状态', width: 90},
    27.             {field: 'zhuchirenname', title: '主持人', width: 120},
    28.             //{field: '', title: '操作', width: 260, toolbar: '#tbMeeting'}
    29.         ]]
    30.     });
    31. }
    32.  
    33. //2.待开会议
    34. function query(){
    35.     table.reload('tb_meeting', {
    36.         url: 'info.action',     //请求地址
    37.         method: 'POST',                    //请求方式，GET或者POST
    38.         loading: true,                     //是否显示加载条（默认 true）
    39.         page: true,                        //是否分页
    40.         where: {                           //设定异步数据接口的额外参数，任意设
    41.             'methodName':'queryMeetingInfoByState',
    42.             'title':$('#title').val(),
    43.             'zhuchiren':$('#userid').val(),
    44.             'state':4
    45.         },
    46.         request: {                         //自定义分页请求参数名
    47.             pageName: 'page', //页码的参数名称，默认：page
    48.             limitName: 'rows' //每页数据量的参数名，默认：limit
    49.         },
    50.         done: function (res, curr, count) {
    51.             //查询完成的回调函数
    52.         }
    53.     });
    54. }

    MeetingInfoDao：

    1. package com.zking.dao;
    2.  
    3. import java.sql.SQLException;
    4. import java.util.List;
    5. import java.util.Map;
    6.  
    7. import com.zking.entity.MeetingInfo;
    8. import com.zking.util.BaseDao;
    9. import com.zking.util.PageBean;
    10. import com.zking.util.StringUtils;
    11.  
    12. public class MeetingInfoDao extends BaseDao{
    13. 	
    14. 	//会议信息的新增
    15. 	public int add(MeetingInfo t) throws Exception {
    16. 		String sql = "insert into t_oa_meeting_info(title,content,canyuze,liexize,zhuchiren,location,startTime,endTime,remark) values(?,?,?,?,?,?,?,?,?)";
    17. 		
    18. 		return super.executeUpdate(sql, t, new String[] {"title","content","canyuze","liexize","zhuchiren","location","startTime","endTime","remark"});
    19. 	}
    20. 	
    21. 	
    22. 	
    23. 	private String getSQL() {
    24. 		return "SELECT\r\n" + 
    25. 				"	a.id,\r\n" + 
    26. 				"	a.title,\r\n" + 
    27. 				"	a.content,\r\n" + 
    28. 				"	a.liexize,\r\n" + 
    29. 				"	a.zhuchiren,\r\n" + 
    30. 				"	b.`name` zhuchirenname,\r\n" + 
    31. 				"	a.location,\r\n" + 
    32. 				"	DATE_FORMAT( a.startTime, '%y-%m-%d %H-%m-%s' ) startTime,\r\n" + 
    33. 				"	DATE_FORMAT( a.endTime, '%y-%m-%d %H-%m-%s' ) endTime,\r\n" + 
    34. 				"	a.state,\r\n" + 
    35. 				"	(\r\n" + 
    36. 				"CASE\r\n" + 
    37. 				"	a.state \r\n" + 
    38. 				"	WHEN 0 THEN\r\n" + 
    39. 				"	'取消会议' \r\n" + 
    40. 				"	WHEN 1 THEN\r\n" + 
    41. 				"	'新建' \r\n" + 
    42. 				"	WHEN 2 THEN\r\n" + 
    43. 				"	'待审核' \r\n" + 
    44. 				"	WHEN 3 THEN\r\n" + 
    45. 				"	'驳回' \r\n" + 
    46. 				"	WHEN 4 THEN\r\n" + 
    47. 				"	'待开' \r\n" + 
    48. 				"	WHEN 5 THEN\r\n" + 
    49. 				"	'进行中' \r\n" + 
    50. 				"	WHEN 6 THEN\r\n" + 
    51. 				"	'开启投票' \r\n" + 
    52. 				"	WHEN 7 THEN\r\n" + 
    53. 				"	'结束会议' ELSE '其他' \r\n" + 
    54. 				"END \r\n" + 
    55. 				"	) meetingstate,\r\n" + 
    56. 				"	a.seatPic,\r\n" + 
    57. 				"	a.remark,\r\n" + 
    58. 				"	a.auditor,\r\n" + 
    59. 				"	c.`name` auditorname \r\n" + 
    60. 				"FROM\r\n" + 
    61. 				"	t_oa_meeting_info a\r\n" + 
    62. 				"	INNER JOIN t_oa_user b ON a.zhuchiren = b.id\r\n" + 
    63. 				"	LEFT JOIN t_oa_user c ON a.auditor = c.id and 1=1 ";
    64. 	}
    65. 	
    66. 	//我的会议SQL，后续其他的菜单也会使用
    67. 	public List> myInfos(MeetingInfo info,PageBean pageBean)
    68. 			throws SQLException, InstantiationException, IllegalAccessException {
    69. 		String sql=getSQL();
    70. 		//拿到会议标题
    71. 		String title = info.getTitle();
    72. 		if(StringUtils.isNotBlank(title)) {
    73. 			sql +=" and title like '%"+title+"%' ";
    74. 		}
    75. 		sql +=" and zhuchiren = "+info.getZhuchiren();
    76. 		return super.executeQuery(sql, pageBean);
    77. 	}
    78.  
    79.  
    80. //设置会议排座图片
    81. 	public int updateSeatPicById(MeetingInfo info) throws Exception {
    82. 		String sql = "update t_oa_meeting_info set seatPic=? where id = ? ";
    83. 		return super.executeUpdate(sql, info, new String[] {"seatPic","id"});
    84. 	}
    85.  
    86. //会议送审
    87.  
    88. 	public int updateAuditorById(MeetingInfo info) throws Exception {
    89. 		String sql = "update t_oa_meeting_info set auditor=?,state=2 where id = ? ";
    90. 		return super.executeUpdate(sql, info, new String[] {"auditor","id"});
    91. 	}
    92.  
    93.  
    94. //我的审批
    95. 	public List> myAudit(MeetingInfo info, PageBean pageBean) throws Exception {
    96. 		String sql=getSQL();
    97. 		//拿到会议标题
    98. 		String title = info.getTitle();
    99. 		if(StringUtils.isNotBlank(title)) {
    100. 			sql +=" and a.title like '%"+title+"%' ";
    101. 		}
    102. 		sql +=" and auditor = "+info.getAuditor();
    103. 		sql+=" and a.state = 2";
    104. 		//降序
    105. 		sql+=" order by a.id desc";
    106. 		return super.executeQuery(sql, pageBean);
    107. 	}
    108.  
    109.  
    110. //待开会议
    111. 	public List> queryMeetingInfoByState(MeetingInfo info, PageBean pageBean) throws Exception {
    112. 		String sql = "select CONCAT(canyuze,',',liexize,',',zhuchiren)\r\n" + 
    113. 				"	, a.id,a.title,a.content,a.canyuze,a.liexize,a.zhuchiren, b.`name` zhuchirenname,a.location, \r\n" + 
    114. 				"	DATE_FORMAT(a.startTime,'%Y-%m-%d %H-%m-%s') startTime, \r\n" + 
    115. 				"	DATE_FORMAT(a.endTime,'%Y-%m-%d %H-%m-%s') endTime, \r\n" + 
    116. 				"	a.state, \r\n" + 
    117. 				"	( \r\n" + 
    118. 				"		case a.state \r\n" + 
    119. 				"		when 0 then '取消会议' \r\n" + 
    120. 				"		when 1 then '新建' \r\n" + 
    121. 				"		when 2 then '待审核' \r\n" + 
    122. 				"		when 3 then '驳回' \r\n" + 
    123. 				"		when 4 then '待开' \r\n" + 
    124. 				"		when 5 then '进行中' \r\n" + 
    125. 				"		when 6 then '开启投票' \r\n" + 
    126. 				"		when 7 then '结束会议' \r\n" + 
    127. 				"		else '其他' end \r\n" + 
    128. 				"	) meetingstate, \r\n" + 
    129. 				"	a.seatPic,a.remark,a.auditor, \r\n" + 
    130. 				"	c.`name` auditorname from t_oa_meeting_info a \r\n" + 
    131. 				"	inner join t_oa_user b on a.zhuchiren = b.id \r\n" + 
    132. 				"	left join t_oa_user c on a.auditor = c.id where 1=1 and state\r\n" + 
    133. 				"	=4 and FIND_IN_SET("+info.getZhuchiren()+", CONCAT(canyuze,',',liexize,',',zhuchiren))";
    134. 		return super.executeQuery(sql, pageBean);
    135. 	}
    136.  
    137. //所有会议
    138.  
    139. 	public List> allInfos(MeetingInfo info, PageBean pageBean) throws Exception {
    140. 		String sql = "select\r\n" + 
    141. 				" a.id,a.title,a.content,a.canyuze,a.liexize,a.zhuchiren, b.`name` zhuchirenname,a.location, \r\n" + 
    142. 				" DATE_FORMAT(a.startTime,'%Y-%m-%d %H-%m-%s') startTime, \r\n" + 
    143. 				" DATE_FORMAT(a.endTime,'%Y-%m-%d %H-%m-%s') endTime, \r\n" + 
    144. 				" a.state, \r\n" + 
    145. 				" ( \r\n" + 
    146. 				"		case a.state \r\n" + 
    147. 				"		when 0 then '取消会议' \r\n" + 
    148. 				"		when 1 then '新建' \r\n" + 
    149. 				"		when 2 then '待审核' \r\n" + 
    150. 				"		when 3 then '驳回' \r\n" + 
    151. 				"		when 4 then '待开' \r\n" + 
    152. 				"		when 5 then '进行中' \r\n" + 
    153. 				"		when 6 then '开启投票' \r\n" + 
    154. 				"		when 7 then '结束会议' \r\n" + 
    155. 				"		else '其他' end \r\n" + 
    156. 				" ) meetingstate, \r\n" + 
    157. 				" a.seatPic,a.remark,a.auditor, \r\n" + 
    158. 				" c.`name` auditorname from t_oa_meeting_info a \r\n" + 
    159. 				" inner join t_oa_user b on a.zhuchiren = b.id \r\n" + 
    160. 				" left join t_oa_user c on a.auditor = c.id where 1=1\r\n" + 
    161. 				"  and FIND_IN_SET("+info.getZhuchiren()+", CONCAT(a.canyuze,',',a.liexize,',',a.zhuchiren,',',IFNULL(a.auditor,-1)))\r\n" + 
    162. 				" \r\n" + 
    163. 				" \r\n" + 
    164. 				"";
    165. 		return super.executeQuery(sql, pageBean);
    166. 	}
    167. 	
    168. 	
    169. 	
    170.  
    171. }

    MeetingInfoAction:

    1. package com.zking.web;
    2.  
    3. import java.util.Date;
    4. import java.util.List;
    5. import java.util.Map;
    6. import java.util.UUID;
    7.  
    8. import javax.servlet.http.HttpServletRequest;
    9. import javax.servlet.http.HttpServletResponse;
    10.  
    11. import org.apache.commons.beanutils.ConvertUtils;
    12.  
    13. import com.zking.dao.MeetingInfoDao;
    14. import com.zking.entity.MeetingInfo;
    15. import com.zking.framework.ActionSupport;
    16. import com.zking.framework.ModelDriver;
    17. import com.zking.util.Base64ImageUtils;
    18. import com.zking.util.MyDateConverter;
    19. import com.zking.util.PageBean;
    20. import com.zking.util.PropertiesUtil;
    21. import com.zking.util.R;
    22. import com.zking.util.ResponseUtil;
    23. import com.zking.util.StringUtils;
    24.  
    25. public class MeetingInfoAction extends ActionSupport implements ModelDriver{
    26. 	private MeetingInfo info = new MeetingInfo(); 
    27. 	private MeetingInfoDao infoDao = new MeetingInfoDao();
    28. 	@Override
    29. 	public MeetingInfo getModel() {
    30. 		//转换器
    31. 	ConvertUtils.register(new MyDateConverter(), Date.class);
    32. 		return info;
    33. 	}
    34. 	
    35. 	
    36. 	
    37. 	
    38. 	
    39. 	public String updateSeatPicById (HttpServletRequest req, HttpServletResponse resp) {
    40. 		/**
    41. 		 * 1.接收界面传递到后台的图片对应的字符串
    42. 		 * 2.借助工具类将字符串生成一个图片，保存到配置文件所配置的路径下
    43. 		 * 3.添加服务器硬盘与请求地址的映射，即可访问
    44. 		 * 4.将请求地址保存到数据库中
    45. 		 */
    46. 		
    47. //		E:/temp/images/T280/
    48. 		
    49. 		
    50. 		try {
    51. 			//获取图片的存放地址
    52. 			String dirPath = PropertiesUtil.getValue("dirPath");
    53. 			//获取浏览器的请求路径，为了后续保存到数据库serverPath=/upload/paizuo/
    54. 			String serverPath = PropertiesUtil.getValue("serverPath");
    55. 			//随机生产一个图片名
    56. 			String fileName = UUID.randomUUID().toString().replaceAll("-", "")+".png";
    57. 			info.getSeatPic();//图片字符串
    58. 			Base64ImageUtils.GenerateImage(info.getSeatPic()
    59. 					.replaceAll("data:image/png;base64,", ""), dirPath+fileName);
    60. 			//将seatPic中的内容修改为请求地址
    61. 			info.setSeatPic(serverPath + fileName);
    62. 			
    63. 			//修改会议排座数据库图片对应的数据库列段
    64. 			//rs影响行数n
    65. 			int rs = infoDao.updateSeatPicById(info);
    66. 			if(rs>0) {
    67. 				ResponseUtil.writeJson(resp, R.ok(200, "会议排座成功"));
    68. 			}
    69. 			else {
    70. 				ResponseUtil.writeJson(resp, R.error(0, "会议排座失败"));
    71.  
    72. 			}
    73. 		} catch (Exception e) {
    74. 			e.printStackTrace();
    75. 			try {
    76. 				ResponseUtil.writeJson(resp, R.ok(0,"会议排座失败"));
    77. 			} catch (Exception e1) {
    78. 				// TODO Auto-generated catch block
    79. 				e1.printStackTrace();
    80. 			}
    81.  
    82. 		}
    83. 		return null;
    84. 	}
    85. 	
    86. 	
    87. 	
    88. 	
    89. 	
    90. 	
    91. 	public String add (HttpServletRequest req, HttpServletResponse resp) {
    92.  
    93. 		try {
    94. 		
    95. 			
    96. 			//rs影响行数
    97. 			int rs =infoDao.add(info);
    98. 			if(rs>0) {
    99. 				ResponseUtil.writeJson(resp, R.ok(200, "会议信息数据新增成功"));
    100. 			}
    101. 			else {
    102. 				ResponseUtil.writeJson(resp, R.error(0, "会议信息数据新增失败"));
    103.  
    104. 			}
    105. 		} catch (Exception e) {
    106. 			e.printStackTrace();
    107. 			try {
    108. 				ResponseUtil.writeJson(resp, R.ok(0,"会议信息数据新增失败"));
    109. 			} catch (Exception e1) {
    110. 				// TODO Auto-generated catch block
    111. 				e1.printStackTrace();
    112. 			}
    113.  
    114. 		}
    115. 		return null;
    116. 	}
    117. 	
    118. 	
    119. 	
    120. 	
    121.  
    122. 	//我的会议
    123. 	
    124. 	public String myInfos (HttpServletRequest req, HttpServletResponse resp) {
    125.  
    126. 		try {
    127. 			PageBean pageBean = new PageBean();
    128. 			pageBean.setRequest(req);
    129. 			List> list= infoDao.myInfos(info, pageBean);
    130. 			//注意：layui中的数据表格的格式
    131. 			ResponseUtil.writeJson(resp, R.ok(0, "我的会议 数据查询成功",pageBean.getTotal(), list ));
    132. 			
    133. 		} catch (Exception e) {
    134. 			e.printStackTrace();
    135. 			try {
    136. 				ResponseUtil.writeJson(resp, R.ok(0,"我的会议数据查询失败"));
    137. 			} catch (Exception e1) {
    138. 				// TODO Auto-generated catch block
    139. 				e1.printStackTrace();
    140. 			}
    141.  
    142. 		}
    143. 		return null;
    144. 	}
    145. 	
    146. 	
    147. 	
    148. 	
    149. 	
    150. //	根据会议ID更新会议的审批人（送审）
    151. 	public String updateAuditorById(HttpServletRequest req, HttpServletResponse resp) {
    152. 		try {
    153. 			int rs = infoDao.updateAuditorById(info);
    154. 			if (rs > 0) {
    155. 				ResponseUtil.writeJson(resp, R.ok(200, "会议审批成功"));
    156. 			}else {
    157. 				ResponseUtil.writeJson(resp, R.error(0, "会议审批失败"));
    158. 			}
    159. 		} catch (Exception e) {
    160. 			e.printStackTrace();
    161. 			try {
    162. 				ResponseUtil.writeJson(resp, R.error(0, "会议审批失败"));
    163. 			} catch (Exception e1) {
    164. 				e1.printStackTrace();
    165. 			}
    166. 		}
    167. 		return null;
    168. 	}
    169. 	
    170. //	我的审批
    171. 	public String myAudit(HttpServletRequest req, HttpServletResponse resp) {
    172. 		try {
    173. 			PageBean pageBean = new PageBean();
    174. 			pageBean.setRequest(req);
    175. 			List> infos = infoDao.myAudit(info, pageBean);
    176. 			ResponseUtil.writeJson(resp, R.ok(0, "我的审批查询成功！！！", pageBean.getTotal(), infos));
    177. 		} catch (Exception e) {
    178. 			e.printStackTrace();
    179. 			try {
    180. 				ResponseUtil.writeJson(resp, R.error(0, "我的审批查询失败"));
    181. 			} catch (Exception e1) {
    182. 				e1.printStackTrace();
    183. 			}
    184. 		}
    185. 		return null;
    186. 	}
    187. 	
    188. 	
    189. 	
    190. 	//待开会议queryMeetingInfoByState
    191. 	
    192. 	public String queryMeetingInfoByState (HttpServletRequest req, HttpServletResponse resp) {
    193.  
    194. 		try {
    195. 			PageBean pageBean = new PageBean();
    196. 			pageBean.setRequest(req);
    197. 			List> list= infoDao.queryMeetingInfoByState(info, pageBean);
    198. 			//注意：layui中的数据表格的格式
    199. 			ResponseUtil.writeJson(resp, R.ok(0, "待开会议数据查询成功",pageBean.getTotal(), list ));
    200. 			
    201. 		} catch (Exception e) {
    202. 			e.printStackTrace();
    203. 			try {
    204. 				ResponseUtil.writeJson(resp, R.ok(0,"待开会议数据查询失败"));
    205. 			} catch (Exception e1) {
    206. 				// TODO Auto-generated catch block
    207. 				e1.printStackTrace();
    208. 			}
    209.  
    210. 		}
    211. 		return null;
    212. 	}
    213. 	
    214. 	
    215. 	//allInfos所有会议
    216. 	
    217. 	public String allInfos (HttpServletRequest req, HttpServletResponse resp) {
    218.  
    219. 		try {
    220. 			PageBean pageBean = new PageBean();
    221. 			pageBean.setRequest(req);
    222. 			List> list= infoDao.allInfos(info, pageBean);
    223. 			//注意：layui中的数据表格的格式
    224. 			ResponseUtil.writeJson(resp, R.ok(0, "所有会议数据查询成功",pageBean.getTotal(), list ));
    225. 			
    226. 		} catch (Exception e) {
    227. 			e.printStackTrace();
    228. 			try {
    229. 				ResponseUtil.writeJson(resp, R.ok(0,"所有会议数据查询失败"));
    230. 			} catch (Exception e1) {
    231. 				// TODO Auto-generated catch block
    232. 				e1.printStackTrace();
    233. 			}
    234.  
    235. 		}
    236. 		return null;
    237. 	}
    238. 	
    239.  
    240. 	
    241. 	
    242.  
    243. }

    运行效果：

     

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  • 原文地址：https://blog.csdn.net/m0_68211831/article/details/126063104