学生成绩管理：（结构体数组、函数、指针、算法、流程结构及文件等的综合应用）

程序说明：有N个学生，每个学生的数据包含学号（不重复）、姓名、三门课的成绩及平均成绩，试设计一学生成绩管理系统，使之能提供以下功能：

-Student Score: (array of structures, functions, pointers, algorithm, process structure and the documents of the integrated application)



Descr iption of the procedures: there are N a student, each student s data include student number (not repeated), name, three courses of the results and average grade, the students try to design a performance management system so that it can provide the following functions: