手撕C++入门基础

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

Widget::Widget(QWidget *parent)
    : QWidget(parent)
    , ui(new Ui::Widget)
    ,btn(new QPushButton("取消",  this))
    ,login_btn(new QPushButton("登录", this))
{   
    ui->setupUi(this);


    this -> setWindowIcon(QIcon(":/picture/hp.jpg"));//设置窗口图标
    this -> setWindowFlag(Qt::FramelessWindowHint, 1);//无边框

    //设置窗口动图
    QMovie *mv = new QMovie(":/picture/ht.webp");
    ui ->label-> setMovie(mv);
    mv -> start();
    ui -> label -> setScaledContents(true);

    //设置退出按钮连接窗口关闭
    btn -> resize(ui -> btn2 -> width(), ui -> btn2 -> height());
    btn->move(ui->btn2->x(), ui->btn2->y()+ui->btn2->height() + 6);
    connect(btn, SIGNAL(clicked()), this, SLOT(my_slots()));

    //设置登录按钮连接登录
    login_btn -> resize(ui -> btn2 -> width(), ui -> btn2 -> height());
    login_btn->move(ui->btn2->x(), ui->btn2->y()+ui->btn2->height() - 29);
    connect(login_btn, &QPushButton::clicked, this, &Widget::login_slot);

    //设置行编辑器的文本及文本显示模式
    ui -> ac_line -> setPlaceholderText("CC账号");
    ui -> pa_line -> setPlaceholderText("CC密码");
    ui -> ac_line -> setEchoMode(QLineEdit::Normal);
    ui -> pa_line -> setEchoMode(QLineEdit::Password);


}

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

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

void Widget::on_btn1_clicked()
{
    this -> close();
}

void Widget::login_slot(){
    if(ui -> ac_line -> text() == "admin"){
        if(ui -> pa_line -> text() == "123456"){
            qDebug() << "登录成功";
        }
    }else{
        qDebug() << "账号或密码错误";
        ui -> pa_line -> setText("");
    }
}

#ifndef WIDGET_H
#define WIDGET_H

#include <QWidget>
#include <QLabel>
#include <QMovie>
#include <QIcon>
#include <QObject>
#include <QPushButton>
#include <QDebug>

QT_BEGIN_NAMESPACE
namespace Ui { class Widget; }
QT_END_NAMESPACE

class Widget : public QWidget
{
    Q_OBJECT

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

signals:
    void my_singal();

private slots:
    void on_btn1_clicked();
    void my_slots();
    void login_slot();

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