本程序包含输入(input)、输出(display)、查找(find)、删除(del)、添加(add)、读入(read)、保存(save)等基本功能。

定义菜单，菜单的级数不超过两级。

定义结构体及结构体数组或线性表。

每次执行完函数就返回主菜单。

是入门级c程序-The program includes an input (input), output (display), find (find), deletion (del), add (add), read (read), save (save) and other basic functions.

Custom menus, the menu is not more than two stages.

Definition of the structure and the structure of the array or linear form.

After you return to the main menu for each function execution.

This is the entry-level C program