编辑代码

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

#define maxsize 3

typedef struct {
    int num;
    char name[20];
    int age;
} stu;

typedef struct {
    stu* list;
    int len;
} stu_list;

void init();
int getlength();
int isempty();
void add();
stu delete_stu();
stu search();
stu renew();

int main () {

    return 0;
}