c++day7

1.给工程文件加入注释

 2.制作登入界面

#include "mainwindow.h"

MainWindow::MainWindow(QWidget *parent)
    : QMainWindow(parent)
{
     this->setFixedSize(600,400);//设置固定尺寸
     this->setWindowIcon(QIcon("C:/Users/WS/Pictures/Saved Pictures/yh.png"));//改变左上角图标的位
     this->setWindowTitle("易碗浆糊");//窗口的名字
     //this->setStyleSheet("background-color:pink;");//背景颜色
      QLabel *lab1=new QLabel(this);//实例化一个标签
      lab1->resize(600,170);//重新设置尺寸
      lab1->setStyleSheet("background-color:yellow");
      lab1->setAlignment(Qt::AlignCenter);
      lab1->setPixmap(QPixmap("C:/Users/WS/Pictures/Saved Pictures/fjh.png"));
      lab1->setScaledContents(true);
      this->setStyleSheet("background-color:white;");//背景颜色

      //用户名框
      QLineEdit *edit1=new QLineEdit(this);
      edit1->resize(230,45);
      edit1->move(lab1->x()+200,lab1->y()+200);
      edit1->setPlaceholderText("用户名");//设置占位文本
      //密码框
      QLineEdit *edit2=new QLineEdit(this);
      edit2->resize(230,45);
      edit2->move(edit1->x(),edit1->y()+75);
      edit2->setPlaceholderText("密码");//设置占位文本
      edit2->setEchoMode(QLineEdit::Password);//设置回显模式
      //实例化一个标签
      QLabel *lab2=new QLabel(this);
      lab2->resize(45,45);//重新设置尺寸
      lab2->setAlignment(Qt::AlignCenter);
      lab2->setPixmap(QPixmap("C:/Users/WS/Pictures/wxn.png"));
      lab2->setScaledContents(true);
      lab2->move(lab1->x()+140,lab1->y()+200);
      //实例化一个标签
      QLabel *lab3=new QLabel(this);
      lab3->resize(45,45);//重新设置尺寸
      lab3->setAlignment(Qt::AlignCenter);
      lab3->setPixmap(QPixmap("C:/Users/WS/Pictures/wxnnn.png"));
      lab3->setScaledContents(true);
      lab3->move(lab1->x()+140,lab1->y()+275);
      //实例化一个按钮
      QPushButton *btn1=new QPushButton(this);
      btn1->setText("登录");
      btn1->resize(70,40);
      btn1->move(lab3->x()+80,lab3->y()+70);
      btn1->setStyleSheet("background-color:white;border-radius:10px;");//设置组件背景色
       btn1->setIcon(QIcon("C:/Users/WS/Pictures/wq.png"));
      //实例化一个按钮
      QPushButton *btn2=new QPushButton(this);
      btn2->setText("退出");
      btn2->resize(70,40);
      btn2->move(btn1->x()+130,btn1->y());
      btn2->setStyleSheet("background-color:white;border-radius:10px;");//设置组件背景色
      btn2->setIcon(QIcon("C:/Users/WS/Pictures/wq2.png"));


}

MainWindow::~MainWindow()
{
}