程序代码：

#include<stdio.h>
#include<malloc.h>
#define NULL 0
#define LEN sizeof(struct student)
int n=0;
struct student
{
    long int num;
    int score;
    struct student *next;
};
struct student *create(void)
{
    struct student *head;
    struct student *p1,*p2;
    p1=p2=(struct student*)malloc(LEN);
    scanf("%ld,%d",&p1->num,&p1->score);
    head=NULL;
    while(p1->num!=0)
    {
        n=n+1;
        if(n==1)
            head=p1;
        else
            p2->next=p1;
        p2=p1;
        p1=(struct student*)malloc(LEN);
        scanf("%ld,%d",&p1->num,&p1->score);
    }
    p2->next=NULL;
    return head;
}
int main(void)
{
    struct student *head,*stu;
    head=create();//创建第一个链表
    stu=create();//创建第二个链表
        print(head);//输出第一个链表
    print(stu);//输出第二个链表
    return 0;
}