目录
一、主函数(test.c)
二、头文件(slist.h)
三、函数调用(slist.c)
一、主函数(test.c)
#define _CRT_SECURE_NO_WARNINGS 1
#include "slist.h"
int main()
{
SListNode* plist = NULL;
//尾插
SListPushBack(&plist, 1);
SListPushBack(&plist, 2);
SListPushBack(&plist, 3);
SListPushBack(&plist, 4);
SListPushBack(&plist, 5);
//打印链表
SListPrint(plist);
//头插
SListPushFront(&plist, 0);
SListPushFront(&plist, 1);
SListPushFront(&plist, 2);
SListPushFront(&plist, 3);
SListPushFront(&plist, 4);
SListPushFront(&plist, 5);
SListPrint(plist);
//尾删
SListPopBack(&plist);
SListPrint(plist);
//头删
SListPopFront(&plist);
SListPrint(plist);
//查找
SListNode* search = SListFind(plist, 2);
SListPrint(search);
//先查找位置在删除或者插入
//在pos后插入x
//SListInsertAfter(&plist, search, 10);
//SListPrint(plist);
//删除pos位置之后的值
//SListEraseAfter(plist, 10);
return 0;
}
二、头文件(slist.h)
#define _CRT_SECURE_NO_WARNINGS 1
#include <stdio.h>
#include <assert.h>
#include <stdlib.h>
#include <string.h>
typedef int SLTDateType;
typedef struct SListNode
{
SLTDateType data;
struct SListNode* next;
}SListNode;
// 动态申请一个节点
SListNode* BuySListNode(SLTDateType x);
// 单链表打印
void SListPrint(SListNode* plist);
// 单链表尾插
void SListPushBack(SListNode** pplist, SLTDateType x);
// 单链表的头插
void SListPushFront(SListNode** pplist, SLTDateType x);
// 单链表的尾删
void SListPopBack(SListNode** pplist);
// 单链表头删
void SListPopFront(SListNode** pplist);
// 单链表查找
SListNode* SListFind(SListNode* plist, SLTDateType x);
// 单链表在pos位置之后插入x
void SListInsertAfter(SListNode** pplist,SListNode* pos, SLTDateType x);
// 单链表删除pos位置之后的值
void SListEraseAfter(SListNode* pos);
三、函数调用(slist.c)
#define _CRT_SECURE_NO_WARNINGS 1
#include "slist.h"
//在动态内存申请一个节点
SListNode* BuySListNode(SLTDateType x)
{
SListNode* newnode = (SListNode*)malloc(sizeof(SListNode));
if (newnode == NULL)
{
perror("malloc fail");
return;
}
newnode->data = x;
newnode->next = NULL;
return newnode;
}
//单链表打印
void SListPrint(SListNode* plist)
{
if (plist == NULL)
{
return 1;
}
SListNode* tail = plist;
while (tail != NULL)
{
printf("->%d", tail->data);
tail = tail->next;
}
printf("\n");
}
//单链表尾插
void SListPushBack(SListNode** pplist, SLTDateType x)
{
SListNode* addnode = BuySListNode(x);
if (*pplist == NULL)
{
*pplist = addnode;
}
//找尾
else
{
SListNode* tail = *pplist;
while (tail->next != NULL)
{
tail = tail->next;
}
tail->next = addnode;
}
}
//单链表的头插
void SListPushFront(SListNode** pplist, SLTDateType x)
{
SListNode* addnode = BuySListNode(x);
if (*pplist == NULL)
{
*pplist = addnode;
}
else
{
SListNode* tail = *pplist;
*pplist = addnode;
(*pplist)->next = tail;
}
}
//单链表尾删
void SListPopBack(SListNode** pplist)
{
assert(*pplist != NULL);
if ((*pplist)->next == NULL)
{
free(*pplist);
*pplist = NULL;
}
else
{
SListNode* tail = *pplist;
SListNode* listnode = NULL;
while (tail->next != NULL)
{
listnode = tail;
tail = tail->next;
}
free(tail);
tail = NULL;
listnode->next = NULL;
}
}
//头删
void SListPopFront(SListNode** pplist)
{
assert((*pplist) != NULL);
if ((*pplist)->next == NULL)
{
free(*pplist);
*pplist = NULL;
}
else
{
SListNode* listnode = *pplist;
*pplist = (*pplist)->next;
free(listnode);
listnode = NULL;
}
}
//单链表的查找
SListNode* SListFind(SListNode* plist, SLTDateType x)
{
assert(plist);
SListNode* seardata = plist;
//记录位置
int count = 0;
while (seardata != NULL)
{
count++;
if (seardata->data == x)
{
printf("->%d在第%d个节点位置\n", x, count);
return seardata;
}
else
{
seardata = seardata->next;
}
}
printf("链表中没有这个数\n");
}
单链表在pos位置之后插入x
//void SListInsertAfter(SListNode** pplist,SListNode* pos, SLTDateType x)
//{
// SListNode* tail = *pplist;
// SListNode* listnode = NULL;
// SListNode* addnode = BuySListNode(x);
// while (tail != pos)
// {
// tail = tail->next;
// listnode = tail;
// }
// listnode->next = addnode;
// addnode->next =tail;
//}
// 单链表删除pos位置之后的值
void SListEraseAfter(SListNode* pos)
{
}