#include<stdio.h>
#include<stdlib.h>
#include<string.h>

typedef struct{
    char *id;
    char *class;
    char *name;
    double score1;
    double score2;
    double score3;
    double score;
}Student;

typedef struct{
    Student* student;
    int nums;
}ss;

ss* init(int);
char mainMenu();
void getCom(ss*);
void Print(Student*);
void allPrint(ss*);
void input(ss*);
void cancel(ss*);
void Select(ss*);