Day 2 Qt

#include "my_widget.h"
#include "ui_my_widget.h"
 
My_Widget::My_Widget(QWidget *parent)
    : QWidget(parent)
    , ui(new Ui::My_Widget)
{
    ui->setupUi(this);
    //窗口的相关设置
//    this -> resize(800,500);
    this -> setWindowTitle("QQ聊天");
    this -> setWindowIcon(QIcon(":/pictrue/pictrue/qq.png"));
 
    //标签相关设置
    ui-> logoLab ->setPixmap(QPixmap(":/pictrue/pictrue/logo.png"));
    ui -> logoLab -> setScaledContents(true);
 
    //账号和密码
    ui -> userNameLab -> resize(40,40);
    ui -> userNameLab -> setPixmap(QPixmap(":/pictrue/pictrue/wodepeizhenshi.png"));
    ui -> userNameLab -> setScaledContents(true);
 
    ui -> passwdLab -> resize(40,40);
    ui -> passwdLab ->setPixmap(QPixmap(":/pictrue/pictrue/passwd.jpg"));
    ui -> passwdLab ->setScaledContents(true);
 
    //账号密码输入
    ui -> usrEdit ->setPlaceholderText("QQ账号/手机号码/QQ邮箱");
    ui -> passwdEdit -> setPlaceholderText("请输入密码");
    ui -> passwdEdit -> setEchoMode(QLineEdit::Password);
 
    //登录按钮
    ui -> btn1 ->setIcon(QIcon(":/pictrue/pictrue/login.png"));
    ui -> btn2 ->setIcon(QIcon(":/pictrue/pictrue/cancel.png"));
 
   connect(ui ->btn1,&QPushButton::clicked,this,&My_Widget::btn1_slot);
 
   connect(ui->btn2,SIGNAL(clicked()),this,SLOT(my_slot()));
 
 
 
 
}
 
My_Widget::~My_Widget()
{
    delete ui;
}
 
void My_Widget::my_slot()
{
    this ->close();
}
void My_Widget:: btn1_slot()
{
    QString s = ui ->usrEdit->text();//存入输入的数据
    QString v = ui ->passwdEdit->text();//存入输入的数据
 
    //判断输入是否正确
    if(s=="admin"&&v=="123456")
    {
        qDebug() << "登录成功";
        this->close();
            }
    else
    {
        qDebug() << "登录失败,请正确输入" ;
        ui ->usrEdit->clear();
        ui->passwdEdit -> clear();
    }
 
}