#include<stdio.h>
#include<stdlib.h>
typedef struct student
{
    int num;
    char name[10];
    float score;
    struct student *next;
}link;

link *listcreat(int n)
{
    link *head;
    link *p,*s;
    int i;
    if((head=(link *)malloc(sizeof(link)))==NULL){
            printf("内存分配失败！\n");
                exit(0);
                }
        head->next=NULL;
    p=head;
    
for(i=0;i<n;i++){
    if((s=(link *)malloc(sizeof(link)))==NULL){
        printf("内存分配失败！\n");
            exit(0);
        }
            p->next=s;
                printf("第%d个人:\n学号     姓名     成绩：\n",i+1);
                    scanf("%d,%s,%f",s->num,s->name,s->score);
                s->next=NULL;
                    p=s;        
                }
    return head;
}

void main()
{
    link *head;
    int n;
    printf("********学生信息管理系统*********\n");
        printf("请输入人数:");
        scanf("%d",&n);
    head=listcreat(n);
}