当我将小部件添加到主窗口时,默认情况下,操作菜单项将存在,如何删除它?
menuBar()->setVisible(false);
verAction = new QAction(tr("&Version"),this);
menuBar()->addAction(verAction);
connect(verAction, SIGNAL(triggered()),this, SLOT(displayVersion()));
displayAction = new QAction(tr("&Display"),this);
menuBar()->addAction(displayAction);
connect(displayAction, SIGNAL(triggered()),this, SLOT(displayMessage()));
exitAction = new QAction(tr("&Exit"),this);
menuBar()->addAction(exitAction);
connect(exitAction, SIGNAL(triggered()),this, SLOT(close()));
谢谢