C++DAY47

头文件

#ifndef WIDGET_H
#define WIDGET_H#include <QWidget>
#include <QPushButton>
#include <QLabel>
#include <QLineEdit>
#include <QDebug>QT_BEGIN_NAMESPACE
namespace Ui { class Widget; }
QT_END_NAMESPACEclass Widget : public QWidget
{Q_OBJECTpublic:Widget(QWidget *parent = nullptr);~Widget();
signals:void my_signal();
public slots:void my_slot();void my_on();private:Ui::Widget *ui;
};
#endif // WIDGET_H

源文件

#include "widget.h"
#include "ui_widget.h"Widget::Widget(QWidget *parent): QWidget(parent), ui(new Ui::Widget)
{ui->setupUi(this);this->setWindowTitle("300英雄");this->setWindowIcon(QIcon(":/pic/d.gif"));this->setWindowFlag(Qt::FramelessWindowHint);ui->labe1->setPixmap(QPixmap(":/pic/5.jpg"));ui->labe1->setScaledContents(true);ui->labe2->setPixmap(QPixmap(":/pic/6.jpg"));ui->labe2->setScaledContents(true);ui->labe3->setPixmap(QPixmap(":/pic/3.gif"));ui->labe3->setScaledContents(true);ui->username->setPlaceholderText("账号");ui->password->setPlaceholderText("密码");ui->password->setEchoMode(QLineEdit::Password);this->connect(ui->Btn2,SIGNAL(clicked()),this,SLOT(my_slot()));connect(ui->Btn1,&QPushButton::clicked,this,&Widget::my_on);
}Widget::~Widget()
{delete ui;
}void Widget::my_slot()
{this->close();
}void Widget::my_on()
{if(ui->username->text() == "admin"){if(ui->password->text() == "123456"){qDebug() << "登录成功";this->close();}else{qDebug() << "登录失败";ui->password->clear();}}else{qDebug() << "登录失败";ui->username->clear();ui->password->clear();}
}