1、主程序有选项：新添、浏览、删除、查询等功能。

2、 同学录中要求有学号、姓名、年龄、地址等基础信息。

采用函数调用的方式完成项目设计。其中学生的个人信息使用结构体数据类型

-1, the main program there are options: Xin Tian, browse, delete, query and other functions. 2, Classmates called for a Student ID, name, age, address and other basic information. Approach using a function call to complete the project design. One student use of personal information data type structure