The menu bar is implemented using the menubar widget of ZK.
菜单栏是使用ZK的menubar小部件实现的。
In fact, they are implemented as different instances of the menubar tag.
事实上，它们实现为menubar标签的不同实例。
A MenuBar that is displayed at the top of the Window and that offers menu item functionality.
MenuBar：显示在Window的顶部，并提供菜单项功能。
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