程序代码：

#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(void)
{
    struct student *head;
    struct student *p1, *p2;
    n = 0;
    p1 = p2 = (struct student *)malloc(len);
    scanf_s("%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_s("%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->next = p;
        } while (p != NULL);
}

int main()
{
    struct student *creat(void);
    void print(struct student *head);
    struct student *head;
    head = creat();
    print(head);
    return 0;
}

[此贴子已经被作者于2017-2-2 20:40编辑过]