浅谈PHP链表数据结构(单链表)_php实例
链表:是一个有序的列表,但是它在内存中是分散存储的,使用链表可以解决类似约瑟夫问题,排序问题,搜索问题,广义表
单向链表,双向链表,环形链表
PHP的底层是C,当一个程序运行时,内存分成五个区(堆区,栈区,全局区,常量区,代码区)
规定:基本数据类型,一般放在栈区
复合数据类型,比如对象,放在堆区
定义一个类Hero
定义成员属性排名 $no
定义成员属性姓名 $name
定义成员属性昵称 $nickname
定义成员属性 $next,是一个引用,指向下一个Hero对象
定义构造函数,传递参数:$no,$name,$nickname
创建一个头head,该head只是一个头,不放入数据
获取$head对象,new Hero()
获取第一个Hero对象$hero,new Hero(1,”宋江”,”及时雨”)
连接两个对象,$head->next=$hero
获取第二个Hero对象$hero2,new Hero(2,”卢俊义”,”玉麒麟”)
连接两个对象,$hero->next=$hero2
遍历链表
定义一个函数showHeros(),参数:$head对象
定义一个临时变量$cur来存储 $head对象
while循环,条件$cur->next不为null
打印一下
指针后移,$cur=$cur->next
PHP版:
<?php /** * 英雄类 */ class Hero{ public $no; public $name; public $nickname; public $next=null; public function __construct($no='',$name='',$nickname=''){ $this->no=$no; $this->name=$name; $this->nickname=$nickname; } } class LinkListDemo{ public static function main(){ $head=new Hero(); $hero1=new Hero(1,"宋江","及时雨"); $head->next=$hero1; $hero2=new Hero(2,"卢俊义","玉麒麟"); $hero1->next=$hero2; LinkListDemo::showHeros($head); } /** * 展示英雄 */ public static function showHeros($head){ $cur=$head; while($cur->next!=null){ echo "姓名:".$cur->next->name."<br/>"; $cur=$cur->next; } } } LinkListDemo::main();
java版:
class Hero{ public int no; public String name; public String nickname; public Hero next=null; public Hero(){ } public Hero(int no,String name,String nickname) { this.no=no; this.name=name; this.nickname=nickname; } } public class LinkListDemo { /** * @param args */ public static void main(String[] args) { Hero head=new Hero(); Hero hero1=new Hero(1, "宋江", "及时雨"); head.next=hero1; Hero hero2=new Hero(2, "卢俊义", "玉麒麟"); hero1.next=hero2; showHeros(head); } /** * 展示英雄 * @param head */ public static void showHeros(Hero head){ Hero cur=head; while(cur.next!=null){ System.out.println("姓名:"+cur.next.name); cur=cur.next; } } }
以上这篇浅谈PHP链表数据结构(单链表)就是小编分享给大家的全部内容了,希望能给大家一个参考,也希望大家多多支持脚本之家。

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