QT: 模拟鼠标点击

void CMainDlg::doClickLow1()
{
    //QMetaObject::invokeMethod(this, "doClickLow2", Qt::AutoConnection);  //doClickLow2执行完了才执行doClickLow1, 相当于 SendMessage
    //emit clickLow2();  //doClickLow2执行完了才执行doClickLow1, 相当于 SendMessage
    //doClickLow1执行 再执行doClickLow2, 相当于 PostMessage
    QMouseEvent* press=new QMouseEvent(QEvent::MouseButtonPress,QPoint(0,0), Qt::LeftButton,Qt::LeftButton,Qt::NoModifier);
    QApplication::postEvent(pushButtonLow2,press);
    QMouseEvent* release=new QMouseEvent(QEvent::MouseButtonRelease,QPoint(0,0),Qt::LeftButton,Qt::LeftButton,Qt::NoModifier);
    QApplication::postEvent(pushButtonLow2,release);

    listWidgetShowMsg->addItem(QObject::tr("doClickLow1"));
}

void CMainDlg::doClickLow2()
{
    QTest::qSleep(500);
    listWidgetShowMsg->addItem(QObject::tr("doClickLow2"));
}