重定义 Qt:: mousePressEvent与 closeEvent

#include <time.h>
void MainWindow::mousePressEvent(QMouseEvent *e)
{
    time_t t;
    time(&t);
    static int remember_click_times=0;
    static int exitlast=0;
    int seconds = t;

   if(e->x()>(deskrect.width()/2)&&e->y()<100)
   {
       if((seconds-exitlast)<3)
           remember_click_times++;
       else
           remember_click_times=0;

       exitlast=seconds;
       if(remember_click_times>4)		//点击大于4次调用close方法；
           close();
   }else
   {
       remember_click_times=0;
   }
   QMainWindow::mousePressEvent(e);
}

//弹窗，输入密码；
void MainWindow::closeEvent(QCloseEvent *e)
{
    bool ok;
    QString str = QInputDialog::getText(this,QString::fromLocal8Bit("密码核对"),QString::fromLocal8Bit("请输入密码："),QLineEdit::Password,"",&ok);

    if (ok){
        if (str.compare("123") == 0)
            e->accept();
        else{
            QMessageBox::warning(this,QString::fromLocal8Bit("警告!"),  QString::fromLocal8Bit("密码错误！"));
            e->ignore();
        }
    }
    else
        e->ignore();
}