#include<malloc.h>
#define NULL 0
#define LEN sizeof(struct student)
struct student
{long num;
float score;
struct student *next;
};
int n;
struct student *creat(void)
{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,%f\n",p->num,p->score);
p=p->next;
}while(p!=NULL);
}

main()
{ struct student *head;
printf("input records:\n");
head=creat();
print(head);
}
为什么编译的时候出来
运行时候显示
scanf:floating point formats not linked
Abnormal program termination
把float 改为int 在把下面的输入输出改为%d就行 请问哈是怎么回事