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添加右键菜单功能小案例

MouseArea {
        id: mouseRegion
        anchors.fill: parent;
        acceptedButtons: Qt.LeftButton | Qt.RightButton // 激活右键(别落下这个)
        onClicked: {
            if (mouse.button === Qt.RightButton) { // 右键菜单
                //
                contentMenu.popup()
            }
        }
    }
    Menu { // 右键菜单
        title: "Edit"
        id: contentMenu
        MenuItem {
            text: "Cut"
            shortcut: "Ctrl+X"
            onTriggered: {}
        }
        MenuItem {
            text: "Copy"
            shortcut: "Ctrl+C"
            onTriggered: {}
        }
        MenuItem {
            text: "Paste"
            shortcut: "Ctrl+V"
            onTriggered: {}
        }
        MenuSeparator { }
        Menu {
            title: "More Stuff"
            MenuItem {
                text: "Do Nothing"
            }
        }
    }

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