【提问】请问single-shot timer是什么？ [复制链接]

QTimer also provides a static function for single-shot timers.
请问single-shot timer是什么类型的计时器啊?

单触发计时器?

void QTimer::singleShot ( int msec, QObject * receiver, const char * member ) [static]
This static function calls a slot after a given time interval.

It is very convenient to use this function because you do not need to bother with a timerEvent or to create a local QTimer object.

Example:

  #include <qapplication.h>
  #include <qtimer.h>

  int main( int argc, char **argv )
  {
    QApplication a( argc, argv );
    QTimer::singleShot( 10*60*1000, &a, SLOT(quit()) );
        ... // create and show your widgets
    return a.exec();
  }

This sample program automatically terminates after 10 minutes (i.e. 600000 milliseconds).

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QTimer::singleShot ()是一个static 函数，你不需要new一个QTimer就可以来定时了！
好像它的机制跟new一个QTimer是一样的！