问问大神们，我这个程序有问题莫
#include<stdio.h>#include<stdlib.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,%5.1f",&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);
}
void main()
{struct Student *head;
head=creat();
print(head);
}
以上的程序有问题莫？
我输入数据之后，按下空格，然后就按键盘就输入不了数据了，运行其他程序的时候没问题，就是运行这个程序出现这种情况，求解答
