#include "stdafx.h"
#include "stdio.h"
#include <stdlib.h>
#include "string.h"
typedef int elemType ;
typedef struct Node{
elemType element;
Node *next;
}Node;
void initList(Node **pNode)
{
*pNode = NULL;
printf("initList函数执行,初始化成功\n");
}
Node *creatList(Node *pHead)
{
Node *p1;
Node *p2;
p1=p2=(Node *)malloc(sizeof(Node));
if(p1 == NULL || p2 ==NULL)
{
printf("内存分配失败\n");
exit(0);
}
memset(p1,0,sizeof(Node));
scanf("%d",&p1->element);
p1->next = NULL;
while(p1->element > 0)
{
if(pHead == NULL)
{
pHead = p1;
}
else
{
p2->next = p1;
}
p2 = p1;
p1=(Node *)malloc(sizeof(Node));
if(p1 == NULL || p2 ==NULL)
{
printf("内存分配失败\n");
exit(0);
}
memset(p1,0,sizeof(Node));
scanf("%d",&p1->element);
p1->next = NULL;
}
printf("creatList函数执行,链表创建成功\n");
return pHead;
}
void printList(Node *pHead)
{
if(NULL == pHead)
{
printf("PrintList函数执行,链表为空\n");
}
else
{
while(NULL != pHead)
{
printf("%d ",pHead->element);
pHead = pHead->next;
}
printf("\n");
}
}
void clearList(Node *pHead)
{
Node *pNext;
if(pHead == NULL)
{
printf("clearList函数执行,链表为空\n");
return;
}
while(pHead->next != NULL)
{
pNext = pHead->next;
free(pHead);
pHead = pNext;
}
printf("clearList函数执行,链表已经清除\n");
}
int sizeList(Node *pHead)
{
int size = 0;
while(pHead != NULL)
{
size++;
pHead = pHead->next;
}
printf("sizeList函数执行,链表长度 %d \n",size);
return size;
}
int isEmptyList(Node *pHead)
{
if(pHead == NULL)
{
printf("isEmptyList函数执行,链表为空\n");
return 1;
}
printf("isEmptyList函数执行,链表非空\n");
return 0;
}
elemType getElement(Node *pHead, int pos)
{
int i=0;
if(pos < 1)
{
printf("getElement函数执行,pos值非法\n");
return 0;
}
if(pHead == NULL)
{
printf("getElement函数执行,链表为空\n");
return 0;
}
while(pHead !=NULL)
{
++i;
if(i == pos)
{
break;
}
pHead = pHead->next;
}
if(i < pos)
{
printf("getElement函数执行,pos值超出链表长度\n");
return 0;
}
return pHead->element;
}
elemType *getElemAddr(Node *pHead, elemType x)
{
if(NULL == pHead)
{
printf("getElemAddr函数执行,链表为空\n");
return NULL;
}
if(x < 0)
{
printf("getElemAddr函数执行,给定值X不合法\n");
return NULL;
}
while((pHead->element != x) && (NULL != pHead->next))
{
pHead = pHead->next;
}
if((pHead->element != x) && (pHead != NULL))
{
printf("getElemAddr函数执行,在链表中未找到x值\n");
return NULL;
}
if(pHead->element == x)
{
printf("getElemAddr函数执行,元素 %d 的地址为 0x%x\n",x,&(pHead->element));
}
return &(pHead->element);
}
int modifyElem(Node *pNode,int pos,elemType x)
{
Node *pHead;
pHead = pNode;
int i = 0;
if(NULL == pHead)
{
printf("modifyElem函数执行,链表为空\n");
}
if(pos < 1)
{
printf("modifyElem函数执行,pos值非法\n");
return 0;
}
while(pHead !=NULL)
{
++i;
if(i == pos)
{
break;
}
pHead = pHead->next;
}
if(i < pos)
{
printf("modifyElem函数执行,pos值超出链表长度\n");
return 0;
}
pNode = pHead;
pNode->element = x;
printf("modifyElem函数执行\n");
return 1;
}
int insertHeadList(Node **pNode,elemType insertElem)
{
Node *pInsert;
pInsert = (Node *)malloc(sizeof(Node));
memset(pInsert,0,sizeof(Node));
pInsert->element = insertElem;
pInsert->next = *pNode;
*pNode = pInsert;
printf("insertHeadList函数执行,向表头插入元素成功\n");
return 1;
}
int insertLastList(Node **pNode,elemType insertElem)
{
Node *pInsert;
Node *pHead;
Node *pTmp;
pHead = *pNode;
pTmp = pHead;
pInsert = (Node *)malloc(sizeof(Node));
memset(pInsert,0,sizeof(Node));
pInsert->element = insertElem;
while(pHead->next != NULL)
{
pHead = pHead->next;
}
pHead->next = pInsert;
*pNode = pTmp;
printf("insertLastList函数执行,向表尾插入元素成功\n");
return 1;
}
int main()
{
Node *pList=NULL;
int length = 0;
elemType posElem;
initList(&pList);
printList(pList);
pList=creatList(pList);
printList(pList);
sizeList(pList);
printList(pList);
isEmptyList(pList);
posElem = getElement(pList,3);
printf("getElement函数执行,位置 3 中的元素为 %d\n",posElem);
printList(pList);
getElemAddr(pList,5);
modifyElem(pList,4,1);
printList(pList);
insertHeadList(&pList,5);
printList(pList);
insertLastList(&pList,10);
printList(pList);
clearList(pList);
system("pause");
}