通过主菜单Menu()函数将读取文件信息、输入、显示、统计、增加、删除、修改、查找、排序等函数结合一起，在用户通过相关操作选择其中一个功能时，调用该功能函数，完成数据处理。在主函数中调用主菜单Menu()函数，完成操作。用一个中间函数将主函数与各功能函数连接在一起，不仅使程序语言简洁、明了、易懂，而且在功能实现上也更加晚上。-　The main menu (menu) function will read the file information, input, display, count, add, modify, delete, search, sort, and function together, the user through the operations related to selecting one of the function call this function, the completion of data processing. Call the main menu Menu () function in the main function, the completion of the operation. By using an intermediate function, the main function is connected with each function function, which not only makes the programming language concise, clear and easy to understand, but also more night in the function realization.