2024-4-8 QT day2 作业

Widget.h

cpp 复制代码

#ifndef WIDGET_H
#define WIDGET_H

#include <QWidget>
#include <QMovie>
#include <QPushButton>

QT_BEGIN_NAMESPACE
namespace Ui { class Widget; }
QT_END_NAMESPACE

class Widget : public QWidget
{
    Q_OBJECT

public:
    Widget(QWidget *parent = nullptr);
    ~Widget();
private:
    Ui::Widget *ui;
    QPushButton *Btn1;//登录按钮
    QPushButton *Btn2;//取消按钮
public slots:
    void my_Btn1_slot();
    void my_Btn2_slot();
};
#endif // WIDGET_H

Widget.cpp

cpp 复制代码

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

Widget::Widget(QWidget *parent)
    : QWidget(parent)
    , ui(new Ui::Widget)
    ,Btn1(new QPushButton(this))
    ,Btn2(new QPushButton(this))
{
    ui->setupUi(this);
    ui->setupUi(this);
    //设置背景图
    QMovie *mv = new QMovie(":/pictrue/zz.gif");
    ui->logoLab->setMovie(mv);
    mv->start();
    ui->logoLab->setScaledContents(true);
    //设置账号密码前面图标
    ui->usernameLab->setPixmap(QPixmap(":/pictrue/userName.jpg"));
    ui->usernameLab->setScaledContents(true);
    ui->passwdLab->setPixmap(QPixmap(":/pictrue/passwd.jpg"));
    ui->passwdLab->setScaledContents(true);


    //设置占位
    ui->usernameEdit->setPlaceholderText("手机号/QQ号/邮箱");
    ui->passwdEdit->setEchoMode(QLineEdit::Password);
    ui->passwdEdit->setPlaceholderText("密码");

    //qt4版本设置登录按钮
    Btn1->setText("登录");
    Btn1->resize(150,50);
    Btn1->move(70,300);
    Btn1->setStyleSheet("background-color:rgb(28,196,252)");
    connect(Btn1,SIGNAL(clicked()),this,SLOT(my_Btn1_slot()));

    //连接槽函数
    //connect(Btn1,SIGNAL());

    //qt4版本设置取消按钮
    Btn2->setText("取消");
    Btn2->resize(150,50);
    Btn2->move(250,300);
    Btn2->setStyleSheet("background-color:rgb(28,196,252)");
    connect(Btn2,SIGNAL(clicked()),this,SLOT(my_Btn2_slot()));

}
void Widget::my_Btn2_slot()
{
    this->close();
}

void Widget::my_Btn1_slot()
{
    if(ui->usernameEdit->text() == "admin" && ui->passwdEdit->text() == "123456")
    {
        qDebug()<<"登录成功！";
        this->close();
    }
    else
    {
         qDebug()<<"登录失败！";
        ui->usernameEdit->clear();
        ui->passwdEdit->clear();
    }

}


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