Qtday3

#include "widget.h"
#include "ui_widget.h"
 
Widget::Widget(QWidget *parent)
    : QWidget(parent)
    , ui(new Ui::Widget)
{
    //窗口设置
    ui->setupUi(this);
    this->setWindowTitle("原神");
    this->setWindowIcon(QIcon(":/picture/genshin.png"));
    this->setWindowFlag(Qt::FramelessWindowHint);
 
    //标签设置
    QMovie *mv = new QMovie(":/picture/leishen.gif");
    ui->lab1->setMovie(mv);
    mv->start();
 
    ui->namelab->setPixmap(QPixmap(":/picture/OIP-C.jpg"));
    ui->namelab->resize(30, 30);
    ui->namelab->move(ui->naedt->x()-35, ui->naedt->y());
    ui->namelab->setScaledContents(true);
 
    ui->pwdlab->setPixmap(QPixmap(":/picture/suo.jpg"));
    ui->pwdlab->resize(30, 30);
    ui->pwdlab->move(ui->pwdedt->x()-35, ui->pwdedt->y());
    ui->pwdlab->setScaledContents(true);
 
    ui->naedt->setPlaceholderText("账号/电话/邮箱");
    ui->pwdedt->setPlaceholderText("密码");
 
    //按钮设置
    this->connect(ui->btn2, SIGNAL(clicked()), this, SLOT(my_close())); //按取消关闭窗口
    connect(ui->btn1, &QPushButton::clicked, this, &Widget::my_slot);
 
 
 
}
 
Widget::~Widget()
{
    delete ui;
}
 
void Widget::my_slot()
{
    if("admin" == ui->naedt->text() && "123456" == ui->pwdedt->text())
    {
        //创建消息对话框
        int ret = QMessageBox::information(this, "提示", "登录成功", QMessageBox::Ok);
        if(QMessageBox::Ok == ret)
        {
            emit Jump();     //登陆成功点击ok跳转
            this->close();
        }
    }
    else
    {
        //基于属性创建错误信息框
        QMessageBox msg(
                    QMessageBox::Critical,
                    "错误",
                    "帐号和密码不匹配，是否重新登录?",
                    QMessageBox::Yes | QMessageBox::No,
                    this);
 
        int ret = msg.exec(); // 基于属性创建的信息对话框需要执行exec函数才能生成对话框
 
        if(QMessageBox::Yes == ret)
        {
            ui->pwdedt->clear();          //Yes清空密码
        }
        else
        {
            this->close();                //NO关闭窗口
        }
    }
}
 
void Widget::my_close()
{
    //创建问题对话框
    int ret = QMessageBox::question(this, "问题", "是否退出登录？", QMessageBox::Yes | QMessageBox::No);
    if(QMessageBox::Yes == ret)
    {
        this->close();           //Yes退出登录界面
    }
}

#include "second.h"
#include "ui_second.h"
 
Second::Second(QWidget *parent) :
    QWidget(parent),
    ui(new Ui::Second)
{
    ui->setupUi(this);
}
 
Second::~Second()
{
    delete ui;
}
 
void Second::my_slot()
{
    this->show();
}

#include "widget.h"
#include "second.h"
#include 
 
int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    Widget w;
    w.show();
 
    Second s;
    //连接两个窗口
    QObject::connect(&w, &Widget::Jump, &s, &Second::my_slot);
    return a.exec();
}