C语言：SWUST OJ,程序设计C 实验六 结构体 题目三 学生结构体链表(0068)

 1 #include <stdio.h>
 2 #include <stdlib.h>
 3 struct student
 4 {
 5     char num[20];
 6     char name[20];
 7     float score;
 8     struct student *next;
 9 };
10 int n;
11 struct student *creat()
12 {
13     struct student *head,*p1,*p2;
14     n=0;
15     p1=p2=(struct student *)malloc(sizeof(struct student));
16     scanf("%s %s %f",p1->num,p1->name,&p1->score);
17     head=NULL;
18     while(p1->num!=0&&p1->name!=0&&p1->score!=0)
19     {
20         n+=1;
21         if(n==1)
22             head=p1;
23         else
24             p2->next=p1;
25         p2=p1;
26         p1=(struct student *)malloc(sizeof(struct student));
27         scanf("%s %s %f",p1->num,p1->name,&p1->score);
28     }
29     p2->next=NULL;
30     return head;
31 }
32 void print(struct student *head)
33 {
34     struct student *p;
35     p=head;
36     if(head!=NULL)
37     {
38         do 
39         {
40             printf("%s %s %g\n",p->num,p->name,p->score);
41             p=p->next;
42         } while(p!=NULL);
43     }
44 }
45 int main()
46 {
47     struct student *head;
48     head=creat();
49     print(head);
50     return 0;
51 }