添加action并触发

　　　actionCheck=menu3->addAction(tr("&打开闭锁规则列表"));

    actionCheck->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_C));

    connect(actionCheck, SIGNAL(triggered()), this, SLOT(on_actionCaction_triggered()));
//on_actionCation_triggered()是在ui界面中新建action的槽函数