Creating menusCreating submenusCreating context menus
2、Access Keys加速快捷键，如下图An access key (also known as an accelerator key) enables you to navigate the menus using the Alt key and a letter that is underlined in the menu item. When the access key is pressed, the menu appears on the screen, and the user can navigate through it using the arrow keys or the mouse.
4、Check Marks，如下图A che罕铞泱殳ck mark symbol can be placed next to a menu item in lieu of an image, typically to indicate that the menu item is being used. For example, if you click the View menu in Visual Studio 2015 and then select the Toolbars menu item, you see a submenu that has many other submenu items, some of which have check marks. The submenu items that have check marks indicate the toolbars that are currently displayed.
2、菜单的主要属性如下图所示；
