线性表循环单链表实现基础操作和效果图

ゞ浴缸里的玫瑰 2022-11-25 13:07 98阅读 0赞

前言：

链表问题，个人建议，最好画图，在纸上画出来，把链表结构画出来，之后就有思路了。

程序问题，不在于看了多少书，而是敲了多少代码，顺着书的逻辑，懂了，把书合上，不一定能敲出了，缺少思考的过程，所以要多敲多练习

代码用C语言实现，可直接运行看效果，有什么问题可以留言，会回复的！

main方法里的测试代码，最好分开运行，不然怕一次性太多不好消化！

效果图：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM5MjM0NDEw_size_16_color_FFFFFF_t_70][]

#include <stdio.h>
    #include <malloc.h>
    
    typedef int ElemType;
    typedef struct Link{
    	ElemType data;
    	struct Link *next;
    }Link,*LinkList;
    
    /*创建一个循环单链表*/
    LinkList InitLink(Link *lk)
    {
    	lk = (LinkList)malloc(sizeof(Link));
    	LinkList newnode,oldnode=lk;
    	oldnode->next=oldnode; 
    	int i = 1;
    	while(i<=10)
    	{
    		newnode = (LinkList)malloc(sizeof(Link));
    		newnode->data = i;
    		newnode->next = oldnode->next;
    		oldnode->next = newnode;
    		oldnode=newnode;
    		i++;
    	}
    	return lk;
    }
    
    /*求循环链表长度*/
    int LenghtLink(Link *lk)
    {
    	Link *Head=lk;
    	int count = 0;
    	while(Head->next!=lk)
    	{
    		Head = Head->next;
    		count++;
    	}
    	return count;
    }
    
    /*链表插入数据*/
    LinkList InsertLink(Link *lk,int i,ElemType e)
    {
    	if(i<1||i>LenghtLink(lk)+1)					//判断插入位置是否合理 
    		return lk;
    	LinkList newnode,oldnode=lk;				//newnode存放生成的新结点 
    	for(int j=1 ; j < i ; j++)
    	{
    		oldnode = oldnode->next;
    	}
    	newnode = (LinkList)malloc(sizeof(Link));	//创建新结点
    	newnode->data=e;
    	newnode->next=oldnode->next;				//将老节点指针域的值给新结点
    	oldnode->next=newnode;						//把新结点的地址给老节点的指针域
    	return lk; 
    }
    
    /*链表删除操作*/
    LinkList DeleteLink(Link *lk,int i)
    {
    	if(i<1||i>LenghtLink(lk))					//判断删除位置是否合理 
    		return lk;
    	LinkList deletenode,oldnode=lk;
    	for(int j=1 ; j < i ; j++)
    	{
    		oldnode = oldnode->next;
    	}
    	deletenode = oldnode->next;
    	oldnode->next = deletenode->next;			//oldnode->next是要删除的结点，再加一个 ->next 就是要删除结点的指针域 
    	free(deletenode);
    	return lk;
    }
    
    int main(void)
    {
    	Link Init,Insert,Delete,*Initlink,*Insertlink,*deletelink,*Headlink;
    	//初始化操作 
    	Initlink = InitLink(&Init);
    	int lenght = LenghtLink(Initlink);
    	printf("循环单链表长度：%d\n",lenght);
    	Headlink = Initlink;
    	Initlink = Initlink->next;
    	while(Initlink->next!=Headlink)
    	{
    		printf("链表数据域的值为：%d 链表指针域的值为：%p\n",Initlink->data,Initlink->next);
    		Initlink=Initlink->next;
    		if(Initlink->next==Headlink)
    			printf("链表数据域的值为：%d 链表指针域的值为：%p 头结点地址：%p\n",Initlink->data,Initlink->next,Headlink);
    	}
    	printf("\n\n");
    	
    	//添加操作 
    	Insertlink = InitLink(&Insert);
    	int address = 6;
    	Insertlink = InsertLink(Insertlink,address,666);
    	lenght = LenghtLink(Insertlink);
    	printf("添加数据后循环单链表长度：%d\n",lenght);
    	Headlink = Insertlink;
    	Insertlink = Insertlink->next;
    	while(Insertlink->next!=Headlink)
    	{
    		printf("链表数据域的值为：%d 链表指针域的值为：%p\n",Insertlink->data,Insertlink->next);
    		Insertlink=Insertlink->next;
    		if(Insertlink->next==Headlink)
    			printf("链表数据域的值为：%d 链表指针域的值为：%p 头结点地址：%p\n",Insertlink->data,Insertlink->next,Headlink);
    	}
    	printf("\n\n");
    	
    	//删除操作
    	deletelink = InitLink(&Delete);
    	deletelink = InsertLink(deletelink,address,666);			//进行添加操作 
    	deletelink = DeleteLink(deletelink,address);
    	lenght = LenghtLink(deletelink);
    	printf("添加数据后循环单链表长度：%d\n",lenght);
    	Headlink = deletelink;
    	deletelink = deletelink->next;
    	while(deletelink->next!=Headlink)
    	{
    		printf("链表数据域的值为：%d 链表指针域的值为：%p\n",deletelink->data,deletelink->next);
    		deletelink=deletelink->next;
    		if(deletelink->next==Headlink)
    			printf("链表数据域的值为：%d 链表指针域的值为：%p 头结点地址：%p\n",deletelink->data,deletelink->next,Headlink);
    	}
    	return 0;
    }

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM5MjM0NDEw_size_16_color_FFFFFF_t_70]: /images/20221124/3179a583ea754fdfb0a1ed1a93aedcfe.png