转自:http://blog.sina.com.cn/s/blog_613cfe940100kacm.html
以下这个代码主要是实现以毫秒为单位的延时
void sleep(unsigned int msec)
{
QTime dieTime = QTime::currentTime().addMSecs(msec);
while( QTime::currentTime() < dieTime )
QCoreApplication::processEvents(QEventLoop::AllEvents, 100);
}
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