class MyObject : public QObject
         {
             Q_OBJECT
         public:
             MyObject(QObject *parent = 0);
         protected:
             void timerEvent(QTimerEvent *event);
         };
         MyObject::MyObject(QObject *parent)
             : QObject(parent)
         {
             ///这里设定你的时间,是多长
             startTimer(50);     // 50-millisecond timer
             startTimer(1000);   // 1-second timer
             startTimer(60000);  // 1-minute timer
         }
         void MyObject::timerEvent(QTimerEvent *event)
         {
             qDebug() << "Timer ID:" << event->timerId();
         }