还要调试。。。。。。。。

#include<stdio.h>
#include<malloc.h>
#define LEN sizeof(struct Student)
struct Student
{
	long 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("%ld,%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("%ld,%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("%ld%5.1f\n",p->num,p->score);
  		p=p->next;
  		
  		
  	}while(p!=NULL);
}
int main()
{
	struct Student* head;
	head=creat();
	print(head);
//	return 0;
	
}