QT 右键菜单

QMenu *pMenu = new QMenu(this)

    QAction *pTest1 = new QAction(QIcon("copy.ico"),"复制", this)

    QAction *pTest2 = new QAction("删除", this)

    QAction *pTest3 = new QAction("标记", this)

    QAction *pTest4 = new QAction("取消标记", this)

  //把QAction对象添加到菜单上

    pMenu->addAction(pTest1)

    pMenu->addAction(pTest2)

    pMenu->addAction(pTest3)

    pMenu->addAction(pTest4)

    //添加分隔线

    //pMenu->addSeparator()

    //设置点击后发送的数据

  // pTest1->setData(1)

    //连接鼠标右键点击信号

    connect(pTest1, &QAction::triggered, this, &sub::ClickCopy)

    connect(pTest2, &QAction::triggered, this, &sub::ClickDel)

    connect(pTest3, &QAction::triggered, this, &sub::Clicktink)

    connect(pTest4, &QAction::triggered, this, &sub::ClickDeltink)

    //在鼠标右键点击的地方显示菜单

    pMenu->exec(cursor().pos())

    //释放内存,若此处不手动释放，则必须等到程序结束时才都能释放

    QList list = pMenu->actions()

    foreach (QAction* pAction, list)

        delete pAction

    delete pMenu

1.进入menuStrip1 items属性

2.在d出的对话框选中你要编辑的菜单，进入其属性dropdownitems

3.在d出的对话框中，选择左上角的下拉框，会有separator，选择，然後添加即可

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