1 # include <stdio.h>
 2 # include <stdlib.h>
 3 # include <string.h>
 4 # pragma warning(disable:4996)
 5 
 6 struct list
 7 {
 8     int data; //数据域
 9     struct list *next; //指针域，指向下一个节点的地址
10 };
11 
12 //struct list *create_list2() //建立一个节点
13 //{
14 //    struct list *p = (struct list *)malloc(sizeof(struct list));
15 //    p->data = 0;
16 //    p->next = NULL;
17 //    return p;
18 //}
19 
20 struct list *create_list()//建立一个节点
21 {
22     return calloc(sizeof(struct list), 1);
23 }
24 
25 int main()
26 {
27     struct list *first = create_list();//创建链表的首节点
28     struct list *second = create_list();//创建下一个节点
29     struct list *third = create_list(); //创建下一个节点
30 
31     first->next = second;
32     second->next = third;
33 
34     free(second); //删除第二个节点
35     first->next = third;//删除之后得让第一个指向第三个
36 
37 
38     system("pause");
39     return 0;
40 }