重写event成这样的格式(相似就可以),怎么实现(event和类)
格式是:
 
bool QWidget::event(QEvent *event) {
        switch (e->type()) {
        case QEvent::KeyPress:
                 keyPressEvent((QKeyEvent *)event);
                if (!((QKeyEvent *)event)->isAccepted())
                        return false;
                break;
        case QEvent::KeyRelease:
                keyReleaseEvent((QKeyEvent *)event);
                if (!((QKeyEvent *)event)->isAccepted())
                        return false;
                break;
                // more...
        }
        return true;
}