看代码

#include <stdio.h>
#include <stdlib.h>
#define N 3
struct student
{
    char number[12];
    char name[10];
    float score[N];
    struct student *next;
};
int main(void)
{
    struct student *creat();
    void print(struct student *head);
    struct student *head;
    head=creat();
    print(head);
    return 0;
}
//创建链表
struct student *creat()
{
    struct student *head;
    struct student *p1, *p2;
    int n, i;
    p1=p2=(struct student *)malloc(sizeof(struct student));
    printf("Please input student's number:");
    scanf("%s", p1->number);
    printf("Please input student's name:");
    scanf("%s", p1->name);
    printf("Please input %d 门 score:", N);
    for(i=0; i<N; i++)
    {
        scanf("%f", &p1->score[i]);
    }
    head=NULL;
    while(p1->number != 0)
    {
        n += 1;
        if(1==n)
        {
            head=p1;
        }
        else
        {
            p2->next=p1;
        }
        p2=p1;
        p1=(struct student *)malloc(sizeof(struct student));
        printf("Please input student's number:");
        scanf("%s", p1->number);
        printf("please input student's name:");
        scanf("%s", p1->name);
        printf("Please input student's %d 门score:", N);
        for(i=0; i<N; i++)
        {
            scanf("%f", &p1->score[i]);
        }
        p2->next=p1;
        p2=p1;
    }
    p2->next=NULL;
    return head;
}
//打印链表
void print(struct student *head)
{
    int i;
    struct student *p1;
    p1=head;
    printf("number\tname\t");
    for(i=0; i<N; i++)
    {
        printf("score%d\t", i+1);
    }
    printf("\n");
    while(p1 != NULL)
    {
        printf("%s%s", p1->number, p1->name);
        for(i=0; i<N; i++)
        {
            printf("%3.1f\t", p1->score[i]);
        }
        printf("\n");
        p1=p1->next;
    }
}

如何修改!

太长了,在哪死循环的?

输入时出现死循环

就是在char number[10]时，我定义当为0时退出输入，但是当输入0时没反应，出现死循环

这里
while(p1->number != 0)
     {
         n += 1;
         if(1==n)
         {
             head=p1;
         }
         else
         {
             p2->next=p1;
         }
         p2=p1;
         p1=(struct student *)malloc(sizeof(struct student));
         printf("Please input student's number:");
         scanf("%s", p1->number);
         printf("please input student's name:");
         scanf("%s", p1->name);
         printf("Please input student's %d 门score:", N);
         for(i=0; i<N; i++)
         {
             scanf("%f", &p1->score[i]);
         }
         p2->next=p1;
         p2=p1;
循环了， 当number=0时也不退出

while(p1->number != 0)

number是一个字符串类型的变量，number != 0不是它的值，是它的地址不为0，其实是相当于 p1->number != NULL
如果需要输入0结束的话可以调用它的第一个字符元素 while(p1->number[0] != '0')

p1->number是地址，改成这样:while(atoi(p1->number)!=0)

只判断最高位是不对的，比如输入p1->number为"023"时，p1->number[0]=='0'

[ 本帖最后由 buptlijun 于 2013-1-12 20:20 编辑 ]

不行啊

ok了