数据结构课程设计:学生成绩管理系统（C++和C）,求大神帮帮忙，求代码

#include #include #include struct STUDENT{ float score[3]; long id; char names[20];};typedef struct STUDENT student;//simplify the struct STUDENTtypedef struct STUDENT *Pstudent; void print();void append();void course_total();void stud