Implement interactive software using menumanagement, user keys can be achieved easily operate the software, convenient supermarket management.
软件运用菜单实现交互式管理，用户轻松的按键就可实现对软件的操作，方便超市管理。
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First, select 'data file Management' from the file menu. A window will open showing the name of your data file, which includes its location on your hard disk.
When the disk management console loads we are first going to have to delete all the volumes on the disk, so right click on the volumes and select delete volume from the context menu.