链表的问题
#define NULL 0#define LEN sizeof (struct student)
#include<malloc.h>
struct student
{
long num;
float score;
struct student * next;
};
int n;
struct student *creat (void) /*定义函数，此函数带回一个指向链表头的指针*/
{
struct student * head;
struct student * p1, * p2;
n=0;
p1=p2=(struct student * ) malloc(LEN); /*开辟一个新的单元*/
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);
}
大家帮我看看这个错了吗?
