void yourClass::keyPressEvent(QKeyEvent *event)
{
if ( event->isAutoRepeat() )
{
cout << "ignoring current key : " << event->key() << "\n";
event->ignore();
return;
}
}
void yourClass::keyPressEvent(QKeyEvent *event)
{
if ( event->isAutoRepeat() )
{
cout << "ignoring current key : " << event->key() << "\n";
event->ignore();
return;
}
}

解决按键按下触发多次事件问题 。release事件一样解决。