1.简易QQ登录页面

实际效果

qss界面代码

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

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

    this->setWindowTitle("QQ"); /*设置窗口标题*/
    this->setWindowIcon(QIcon(":/pic/qq.png")); /*设置窗口图标*/
    this->setWindowFlag(Qt::FramelessWindowHint);/*设置纯净窗口*/
    this->resize(430,330);/*设置大小*/

    /*设置窗口可移动*/


}

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

/*鼠标按压事件*/
void Widget::mousePressEvent(QMouseEvent *event)
{
    p = event->pos();
}
/*鼠标移动事件*/
void Widget::mouseMoveEvent(QMouseEvent *event)
{
    if(event->buttons() == Qt::LeftButton)
    {
        this->move(event->globalPos() - p);
    }
}