结构体指针

#include<stdio.h>
struct stu{
int num;
float score;
struct stu* next;
};

int main() {
struct stu a, b, c, *head, *p;
a.num = 10101;
a.score = 89.5;
b.num = 10103;
b.score = 90;
c.num = 10107;
c.score = 85;
head = &a;
a.next = &b;
b.next = &c;
c.next = NULL;
p = head;
do {
printf("%d %5.1f\n", p -> num, p ->score);
p = p->next;//使p指向下一个结点
} while(p != NULL);
return 0;
}