完善对话框，点击登录对话框，如果账号和密码匹配，则弹出信息对话框，给出提示”登录成功“，提供一个Ok按钮，用户点击Ok后，关闭登录界面，跳转到其他界面

如果账号和密码不匹配，弹出错误对话框，给出信息”账号和密码不匹配，是否重新登录“,并提供两个按钮Yes|No，用户点击Yes后，清除密码框中的内容，继续让用户进行登录，如果用户点击No按钮，则直接关闭登录界面

如果用户点击取消按钮，则弹出一个问题对话框，给出信息”您是否确定要退出登录？“，并给出两个按钮Yes|No，用户点击Yes后，关闭登录界面，用户点击No后，关闭对话框，继续执行登录功能

要求：基于属性版实现对话框的弹出

main.cpp

#include "widget.h"
#include "form.h"

#include <QApplication>

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    Widget w;
    w.show();
    Form f;
    //连接窗口1的信号函数和窗口2打开的lambda函数
    Widget::connect(&w,&Widget::login,[&](){
        f.show();
    });

    return a.exec();
}

widget.cpp

#include "widget.h"
#include "ui_widget.h"

Widget::Widget(QWidget *parent)
    : QWidget(parent)
    , ui(new Ui::Widget)
{
    ui->setupUi(this);

    this->setWindowFlag(Qt::FramelessWindowHint);
    this->setAttribute(Qt::WA_TranslucentBackground);
    this->setWindowTitle("原神启动");
    this->setWindowIcon(QIcon(":/Logo/p.jpg"));
}

Widget::~Widget()
{
    delete ui;
}

void Widget::on_pushButton_clicked()
{
    if(ui->lineEdit->text()=="admin"&&ui->lineEdit_2->text()=="123456"){
        QMessageBox msg(QMessageBox::Information,"登录","登陆成功",QMessageBox::Ok);
        int res=msg.exec();
        if(res==QMessageBox::Ok){//发射登陆成功信号，在main连接到窗口2
            emit login();
            this->close();
        }
    }else{
        QMessageBox msg2(QMessageBox::Warning,"登录","账号和密码不匹配",QMessageBox::Yes|QMessageBox::No);
        int res2=msg2.exec();
        if(res2==QMessageBox::No){
            this->close();
        }else{
            this->ui->lineEdit->clear();
            this->ui->lineEdit_2->clear();
        }
    }
}

void Widget::on_but2_clicked()
{
    QMessageBox msg(QMessageBox::Question,"取消","您是否确认要退出登录？",QMessageBox::Yes|QMessageBox::No);
    int res=msg.exec();
    if(res==QMessageBox::Yes){
        this->close();
    }
}

widget.h

#ifndef WIDGET_H
#define WIDGET_H

#include <QWidget>
#include <QMessageBox>

QT_BEGIN_NAMESPACE
namespace Ui { class Widget; }
QT_END_NAMESPACE

class Widget : public QWidget
{
    Q_OBJECT

public:
    Widget(QWidget *parent = nullptr);
    ~Widget();

signals:
    void login();

private slots:


    void on_pushButton_clicked();

    void on_but2_clicked();

private:
    Ui::Widget *ui;
};
#endif // WIDGET_H

form.cpp

#include "form.h"
#include "ui_form.h"

Form::Form(QWidget *parent) :
    QWidget(parent),
    ui(new Ui::Form)
  ,speecher(new QTextToSpeech(this))
{
    ui->setupUi(this);
    this->setWindowFlag(Qt::FramelessWindowHint);
        this->setAttribute(Qt::WA_TranslucentBackground);
}

Form::~Form()
{
    delete ui;
}
void Form::on_pushButton_4_clicked()
{
    this->close();
}

void Form::on_pushButton_clicked()
{
    speecher->say(ui->pushButton->text());
}

void Form::on_pushButton_2_clicked()
{
    speecher->say(ui->pushButton_2->text());
}

void Form::on_pushButton_3_clicked()
{
    speecher->say(ui->pushButton_3->text());
}

form.h

#ifndef FORM_H
#define FORM_H

#include <QWidget>
#include <QTextToSpeech>
namespace Ui {
class Form;
}

class Form : public QWidget
{
    Q_OBJECT

public:
    explicit Form(QWidget *parent = nullptr);
    ~Form();
private slots:
    void on_pushButton_4_clicked();

    void on_pushButton_clicked();

    void on_pushButton_2_clicked();

    void on_pushButton_3_clicked();

private:
    Ui::Form *ui;
    QTextToSpeech *speecher;
};

#endif // FORM_H