关于链表建立问题,程序出错,想了好久拉,但不知道在哪,请大家帮忙,
#include <stdlib.h>#include <stdio.h>
#define NuLL 0
#define LEN sizeof(struct student)
struct student
{long number;
float score;
struct student *next;
};
int n;
struct student *creat(void)
{ struct student *P1,*p2;
struct student *head;
n=0;
p1=p2=(struct student *)malloc(LEN);
scanf("%ld,%f",&p1->number,&p1->score);
head=NULL;
while (p1->number!=0)
{n=n+1;
if (n==1) head=p1;
else p2->next=p1;
p2=p1;
p1=(struct student *)malloc(LEN);
scanf("%ld,%f",&p1->number,&p1->score);
}
p2->next=NULL;
return(head);
}
void print(struct student *head)
{
struct student *p;
p=head;
if (head!=NULL)
do
{printf("%ld,%f",p->number,p->score);
p=p->next;
}while(p!=NULL);
}
int main(void)
{struct student *head;
head=creat();
print(head);
}
struct student *creat(void)
{ struct student *P1,*p2; //这里的p1应该是小写！
…… 十分感谢楼上的帮忙,虽然很简单,但对我来说不容易发现错误,呵呵
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