Qt类中使用定时器

class aaa : public QThread
{
    Q_OBJECT      
     ...
protected:
     //重写run函数
     void run();
public slots:
     void timerOut();
private:
     QTimer *timer;  
}

aaa::aaa(QThread *parent):QThread(parent)
{
     timer = new QTimer(0);
     connect(timer,SIGNAL(timeout()),this,SLOT(timerOut()),Qt::DirectConnection);
     timer->start(xxx);
}

void aaa::run()
{
     exec();  
}

void aaa::timerOut()
{
   ....
}


int main()
{
     QCoreApplication a(); 
     aaa *pt = new aaa();
     pt->start();
     return a.exec();
}