14、企业链表

 1 #ifndef LINKLIST_H
 2 #define LINKLIST_H
 3 
 4 #include<stdio.h>
 5 #include<stdlib.h>
 6 #include<string.h>  
 7 
 8 
 9 //链表小结点
10 typedef struct LINKNODE {
11     struct LINKNODE* next;
12 }LinkNode;
13 
14 //链表结点
15 typedef struct LINKLIST {
16     LINKNODE head;
17     int size;
18 }LinkList;
19 //遍历函数指指针
20 typedef void(*PRINTNODE)(LinkNode*);
21 //比较函数指针
22 typedef int(*COMPARENODE)(LinkNode*, LinkNode*);
23 
24 //初始化链表
25 LinkList* Init_LinkList();
26 //插入
27 void Insert_LinkList(LinkList* list, int pos, LinkNode* data);
28 //删除
29 void Remove_LinkList(LinkList* list, int pos);
30 //查找
31 int Find_LinkList(LinkList* list, LinkNode* data,COMPARENODE compare);
32 //返回链表大小
33 int Size_LinkList(LinkList* list);
34 //打印
35 void Print_LinkList(LinkList* list, PRINTNODE print);
36 //释放链表内存
37 void FreeSpace_LinkList(LinkList* list);
38 
39 
40 
41 
42 #endif

  1 #include"LinkList.h"
  2 
  3 //初始化链表
  4 LinkList* Init_LinkList() {
  5     LinkList* list = (LinkList*)malloc(sizeof(LinkList));
  6     list->head.next = NULL;
  7     list->size = 0;
  8     return list;
  9 }
 10 //插入
 11 void Insert_LinkList(LinkList* list, int pos, LinkNode* data) {
 12 
 13     if (list == NULL)
 14     {
 15         return;
 16     }
 17     if (data == NULL) {
 18         return;
 19     }
 20     if (pos < 0 || pos >= list->size) {
 21         pos = list->size;
 22     }
 23     //查找插入位置
 24     LinkNode* pCurrent = &(list->head);
 25     for (int i = 0; i < pos; i++) {
 26         pCurrent = pCurrent->next;
 27     }
 28     //插入新结点
 29     data->next = pCurrent->next;
 30     pCurrent->next = data;
 31 
 32     list->size++;
 33 }
 34 //删除
 35 void Remove_LinkList(LinkList* list, int pos) {
 36     if (list == NULL)
 37     {
 38         return;
 39     }
 40     if (pos < 0 || pos >= list->size) {
 41         return;
 42     }
 43     //辅助指针变量
 44     LinkNode* pCurrent = &(list->head);
 45     for (int i = 0; i < pos; i++) {
 46         pCurrent = pCurrent->next;
 47     }
 48     //删除结点
 49     pCurrent->next = pCurrent->next->next;
 50 
 51     list->size--;
 52 
 53 }
 54 //查找
 55 int Find_LinkList(LinkList* list, LinkNode* data, COMPARENODE compare) {
 56     if (list == NULL)
 57     {
 58         return -1;
 59     }
 60     if (data == NULL) {
 61         return -1;
 62     }
 63     //辅助指针变量
 64     LinkNode* pCurrent = list->head.next;
 65     int index = 0;
 66     int flag = -1;
 67     while (pCurrent != NULL) {
 68         if(compare(pCurrent,data)==0)
 69         {
 70             flag = index;
 71             break;
 72         }
 73 
 74         pCurrent = pCurrent->next;
 75         index++;
 76     }
 77     return flag;
 78 }
 79 //返回链表大小
 80 int Size_LinkList(LinkList* list) {
 81     return 0;
 82 }
 83 //打印
 84 void Print_LinkList(LinkList* list, PRINTNODE print) {
 85     if (list == NULL) {
 86         return;
 87     }
 88     //辅助指针变量
 89     LinkNode* pCurrent = list->head.next;
 90     while (pCurrent != NULL) {
 91         print(pCurrent);
 92         pCurrent = pCurrent->next;
 93     }
 94 }
 95 //释放链表内存
 96 void FreeSpace_LinkList(LinkList* list) {
 97     if (list == NULL) {
 98         return;
 99     }
100     free(list);
101 }

 1 #define _CRT_SECURE_NO_WARNINGS
 2 #include<stdio.h>
 3 #include<stdlib.h>
 4 #include<string.h>  
 5 #include"LinkList.h"
 6 
 7 typedef struct PERSON {
 8     LinkNode node;
 9     char name[64];
10     int age;
11 }Person;
12 
13 void MyPrint(LinkNode* data) {
14     Person* p = (Person*)data;
15     printf("Name:%s Age:%d\n",p->name,p->age);
16 }
17 
18 int MyCompare(LinkNode* nodel1, LinkNode* nodel2) {
19     Person* p1 = (Person*)nodel1;
20     Person* p2 = (Person*)nodel2;
21     if (strcmp(p1->name,p2->name)==0 && p1->age==p2->age) {
22         return 0;
23     }
24     return -1;
25 }
26 
27 
28 int main()
29 {
30     LinkList* list = Init_LinkList();
31     
32     //创建数据
33     Person p1, p2, p3, p4, p5;
34     strcpy(p1.name, "aaa");
35     strcpy(p2.name, "bbb");
36     strcpy(p3.name, "ccc");
37     strcpy(p4.name, "ddd");
38     strcpy(p5.name, "eee");
39 
40     p1.age = 10;
41     p2.age = 20;
42     p3.age = 30;
43     p4.age = 40;
44     p5.age = 50;
45 
46 
47     //将结点插入到链表
48     Insert_LinkList(list, 0, (LinkNode*)&p1);
49     Insert_LinkList(list, 0, (LinkNode*)&p2);
50     Insert_LinkList(list, 0, (LinkNode*)&p3);
51     Insert_LinkList(list, 0, (LinkNode*)&p4);
52     Insert_LinkList(list, 0, (LinkNode*)&p5);
53 
54     //打印
55     Print_LinkList(list, MyPrint);
56 
57     //删除结点
58     Remove_LinkList(list, 2);
59 
60     //打印
61     printf("------------------\n");
62     Print_LinkList(list, MyPrint);
63 
64     //查找
65     Person findP;
66     strcpy(findP.name, "bbb");
67     findP.age = 20;
68     int pos=Find_LinkList(list, (LinkNode*)&findP, MyCompare);
69     printf("位置：%d\n",pos);
70 
71     //释放链表内存
72     FreeSpace_LinkList(list); 
73 
74     system("pause");
75     return 0;
76 }