链表（个人笔记与记录）

链表的创建，遍历，查找，删除。

#include 
#include 
#include 
struct Node
{
    int data;
    struct Node* next;
};

struct Node* createList()//创建
{
    struct Node* headNode = (struct Node*)malloc(sizeof(struct Node));
    headNode->next = NULL;
    return headNode;
}

struct Node* createaNode(int data)
{
    struct Node* newNode = (struct Node*)malloc(sizeof(struct Node));
    newNode->data = data;
    newNode->next = NULL;
    return newNode;
}

void printList(struct Node* headNode)//遍历
{
    struct Node* pMove = headNode->next;
    while(pMove)
    {
        printf("%d ",pMove->data);
        pMove = pMove->next;
    }
    printf("n");
}
//插入结点，参数
void insertNodeByHead(struct Node* headNode,int data)
{
    //创建插入的结点
    struct Node* newNode = createaNode(data);
    newNode->next = headNode->next;
    headNode->next = newNode;
}
//删除指定数据
void deleteNode(struct Node* headNode,int posData)
{
    struct Node* posNode = headNode->next;
    struct Node* posNodeFront = headNode;
    if(posNode == NULL)
        printf("无法删除，链表为空n");
    else
    {
        while(posNode->data != posData)
        {
            posNodeFront = posNode;
            posNode = posNodeFront->next;
            if(posNode==NULL)
            {
                printf("没有找到指定删除信息，无法删除n");
                return;
            }
        }
        posNodeFront->next = posNode->next;
        free(posNode);
    }
}

int main()
{
    struct Node* list = createList();
    int n,i,x;
    printf("请输入数据个数：n");
    scanf("%d",&n);
    printf("请输入数据：n");
    for(i = 1;i <= n;i++)
    {
        scanf("%d",&x);
        insertNodeByHead(list,x);
    }
    printList(list);
    printf("请输入要删除的数据：n");
	while(scanf("%d",&x)!=EOF)
	{
		deleteNode(list,x);
    	printList(list);
		printf("请输入要删除的数据：n");
	}
    
	return 0;
}