day48：QT day1，QT常用组件

#include "mainwindow.h"
#include "ui_mainwindow.h"
 
MainWindow::MainWindow(QWidget *parent)
    : QWidget(parent)
    , ui(new Ui::MainWindow)
{
    this->setFixedSize(500,500);
    this->setWindowTitle("hqyj login...");
    this->setWindowIcon(QIcon("‪‪D:\\qianrushi\\c++&qtcode\\day8\\icon\\wodepeizhenshi.png"));
 
    //实例化一个标签，给定初始文本内容并指定父组件
    QLabel *lab1=new QLabel(this);
    lab1->setGeometry(0,0,500,200);
    lab1->setScaledContents(true);
    lab1->setPixmap(QPixmap("D:\\qianrushi\\c++&qtcode\\day8\\icon\\logo.png"));
 
    QLabel *lab2=new QLabel(this);
    lab2->setPixmap(QPixmap("‪‪D:\\qianrushi\\c++&qtcode\\day8\\icon\\userName.jpg"));
    lab2->setGeometry(80,250,50,50);
    lab2->setScaledContents(true);
 
    QLineEdit *edit1=new QLineEdit(this);
    edit1->setGeometry(lab2->x()+150,lab2->y(),200,50);
    edit1->setPlaceholderText("hqyj账号/手机/邮箱");
 
 
    QLabel *lab3=new QLabel(this);
    lab3->setPixmap(QPixmap("‪D:\\qianrushi\\c++&qtcode\\day8\\icon\\passwd.jpg"));
    lab3->setGeometry(lab2->x(),lab2->y()+50,50,50);
    lab3->setScaledContents(true);
 
    QLineEdit *edit2=new QLineEdit(this);
    edit2->setGeometry(lab3->x()+150,lab3->y(),200,50);
    edit2->setPlaceholderText("密码");
    edit2->setEchoMode(QLineEdit::Password);
 
    QPushButton *btn1=new QPushButton(QIcon("‪D:\\qianrushi\\c++&qtcode\\day8\\icon\\login.png"),"登录",this);
    btn1->resize(100,40);
    btn1->move(lab3->x()+100,lab3->y()+80);
 
    QPushButton *btn2=new QPushButton(QIcon("‪D:\\qianrushi\\c++&qtcode\\day8\\icon\\cancel.png"),"退出",this);
    btn2->resize(100,40);
    btn2->move(btn1->x()+150,btn1->y());
 
}
 
MainWindow::~MainWindow()
{
    delete ui;
}
 

思维导图：有道云笔记