QT延时：阻塞延时与非阻塞延时

非阻塞延时：

void GreenPass3::delaymsec(int msec)
{
    QTime dieTime = QTime::currentTime().addMSecs(msec);

    while( QTime::currentTime() < dieTime )

    QCoreApplication::processEvents(QEventLoop::AllEvents, 100);
}

 

 

阻塞延时：

void GreenPass3::delaymsec(int msec)
{

    QTime n=QTime::currentTime();

    QTime now;
    do{
      now=QTime::currentTime();
    }while (n.msecsTo(now)<=msec);

}