自由发挥应用场景实现一个登录窗口界面。

mywidget.cpp

#include "mywidget.h"

MyWidget::MyWidget(QWidget *parent)
    : QWidget(parent)
{
    //窗口相关设置
    this->setWindowTitle("原神启动");
    this->setWindowIcon(QIcon("C:\\Users\\17212\\Pictures\\pri\\p.jpg"));

    //去掉头部 设置纯净窗口
    //this->setWindowFlag(Qt::FramelessWindowHint);

    //设置窗口的大小
    this->resize(600,450);

    this->setStyleSheet("background-color:grey");

    //设置固定大小
    this->setFixedSize(600,450);

    //标签相关设置
    QLabel *lab1 = new QLabel(this);
    lab1->resize(600,200);
    lab1->setStyleSheet("background-color:rbg(240,255,128)");

    //动图类 QMovie
    QMovie *mv = new QMovie("C:\\Users\\17212\\Pictures\\pri\\R-C.gif");
    mv->setParent(this);
    //将动图设置到标签中
    lab1->setMovie(mv);
    //让动图动起来
    mv->start();
    lab1->setScaledContents(true);

    QLabel *lab2 = new QLabel(this);
    lab2->resize(35,35);
    lab2->move(160,230);
    //接收动图类 QMovie
    QMovie *mv1 = new QMovie("C:\\Users\\17212\\Pictures\\pri\\a.gif");
    //将动图设置标签中
    lab2->setMovie(mv1);
    //让动态动起来
    mv1->start();
    lab2->setScaledContents(true);

    QLabel *lab3 = new QLabel(this);
    lab3->resize(35,35);
    lab3->move(160,270);
    lab3->setPixmap(QPixmap("C:\\Users\\17212\\Pictures\\t\\Camera Roll\\Saved Pictures\\pictrue\\passwd.jpg"));
    lab3->setScaledContents(true);

    QLabel *lab4 = new QLabel(this);
    lab4->resize(70,40);
    lab4->move(510,400);
    lab4->setPixmap(QPixmap("C:\\Users\\17212\\Pictures\\pri\\mhy.jpg"));
    lab4->setScaledContents(true);

    QLabel *lab5 = new QLabel(this);
    lab5->resize(50,50);
    lab5->move(50,390);
    QMovie *mv2 = new QMovie("C:\\Users\\17212\\Pictures\\pri\\c.gif");
    lab5->setMovie(mv2);
    mv2->start();
    lab5->setScaledContents(true);

    //行编辑器相关设置
    QLineEdit *edit1 = new QLineEdit(this);
    edit1->move(200,230);
    edit1->resize(270,35);
    edit1->setPlaceholderText("UID/QQ号/手机号码/邮箱");

    QLineEdit *edit2 = new QLineEdit(this);
    edit2->move(200,270);
    edit2->resize(270,35);
    edit2->setPlaceholderText("密码");
    edit2->setEchoMode(QLineEdit::Password);

    //按钮相关设置
    QPushButton *btn = new QPushButton("登录",this);
    btn->move(160,310);
    btn->resize(310,45);
    btn->setStyleSheet("background-color:rgb(30,200,250)");
}

MyWidget::~MyWidget()
{
}

mywidget.h

#ifndef MYWIDGET_H
#define MYWIDGET_H

#include <QWidget>
#include <QPushButton>
#include <QMovie>
#include <QLineEdit>
#include <QLabel>
class MyWidget : public QWidget
{
    Q_OBJECT

public:
    MyWidget(QWidget *parent = nullptr);
    ~MyWidget();
};
#endif // MYWIDGET_H