使用QT编写一个简单QQ登录界面

widget.c

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

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

    this->setWindowIcon(QIcon(":/pictrue/qq.png"));
    ui->lineEdit->setPlaceholderText("账号");//设置占位符
    ui->lineEdit_2->setPlaceholderText("密码");
    this->setWindowFlag(Qt::FramelessWindowHint);//去除头部
    this->setAttribute(Qt::WA_TranslucentBackground);

}

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