#include<stdio.h>
#include<malloc.h>

#define LEN sizeof(struct student)
struct student
    {int num;

    float score;
    struct student *next;
    };
   int n;
struct student *creat()
{
struct student *head;
    struct student *p1,*p2;
    n=0;
    p1=p2=(struct student*)malloc(LEN);
    scanf("%d,%f",&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("%d,%f",&p1->num,&p1->score);
    }
    p2->next=NULL;
    return(head);
}


void print(struct student *head)
{struct student *p;
printf("\nNow,These%d records are:\n",n);
p=head;
if(head!=NULL)
do
{printf("%1d %f\n",p->num,p->score);
p=p->next;
}while(p!=NULL);
}
void main()
{
struct student *head;
head=creat();
pritn(head);

}

新手自学当中，还请各位师兄多多指教，谢谢！

谢谢各位，由于新学，很多东西都没有信心，只能靠不断的错误来积累经验，更没有想到只是因为两个字母的位置问题而出现错误。真的谢谢各位师兄的赐教！