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DlinkList.h
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#define _CRT_SECURE_NO_WARNINGS
#include<stdio.h>
#include<string.h>
#include<stdlib.h>
typedef void DLinkList;
typedef struct _tag_DLinklistNode{
struct _tag_DlinklistNode *pre;
struct _tag_DlinklistNode *next;
}DLinkListNode;
/*
该双向链表的局限性是插入的元素节点唯一,即不能插入同一个节点两次或多次
*/
//双向链表的创建
DLinkList *DLinkListCreate();
//在位置pos插入一个新节点
int DLinkListInsert(DLinkList *list, DLinkListNode *node, int pos);
//双向链表的长度
int DLinkListLength(DLinkList *list);
//双向链表的销毁
int DLinkListDestroy(DLinkList *list);
//得到位置pos的节点
DLinkListNode * DLinkListGet(DLinkList *list, int pos);
//获取当前游标所指节点,并让游标后移一次
DLinkListNode * DLinkListNextNode(DLinkList *list);
//获取当前游标所指节点,并让游标前移一次
DLinkListNode * DLinkListPreNode(DLinkList *list);
//让游标指向第一个业务节点
DLinkListNode * DLinkListReset(DLinkList *list);
//删除位置pos的节点
DLinkListNode * DLinkListDelete(DLinkList *list, int pos);
//删除node节点
DLinkListNode * DLinkListDeleteNode(DLinkList *list, DLinkListNode *node);
//拿到当前游标所指节点
DLinkListNode * DLinkListCurrentNode(DLinkList *list);
//清空双向链表
int DLinkListClear(DLinkList *list);
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