该程序可以作为一些学习c语言和开发的人员参考，怎样去开发多级菜单。该程序用c编写。经过修改可以应用到实际的程序中。-the program can be used as learning c language and the development of reference, and how to develop multi-level menu. C of the procedures used to prepare. After changes can be applied to the a