PHP算法每日一练 单链表

<?php
/**单向链表 -- 水浒传英雄排行版*/
class hero{
    public $name = '';
    public $no ='';
    public $cname = '';
    public $next = '';
    public function __construct($no = '',$name='',$cname=''){
        $this->no = $no;
        $this->name = $name;
        $this->cname = $cname;
    }
    //显示英雄链表
    public static function showHero($head){
        $cur = $head;
        while($cur->next != null){
            echo '英雄编号:'.$cur->next->no.'&nbsp;&nbsp;';
            echo '英雄姓名:'.$cur->next->name.'&nbsp;&nbsp;';
            echo '英雄昵称:'.$cur->next->cname.'&nbsp;&nbsp;';
            echo '<br />';
            $cur  = $cur->next;
        }
        echo '<hr />';
    }
    //英雄加到链表末端
    public static function addHero($head,$hero){
        $cur = $head;
        while($cur->next != null){
            $cur = $cur->next;
        }
        $cur->next  = $hero;
    }
    //英雄按排序加入
    public static function addHero2($head,$hero){
        $cur = $head;
        while($cur->next != null){
            if($cur->next->no  > $hero->no){
                break;
            }
            $cur = $cur->next;
        }
        $hero->next  = $cur->next;
        $cur->next  = $hero;
    }
    //修改英雄
    public static function editHero($head,$hero){
        $cur = $head;
        while($cur->next != null){
            if($cur->next == $hero){
                break;
            }
            $cur = $cur->next;
        }
        $cur->next->name  = $hero->name;
        $cur->next->cname  = $hero->cname;
    }
    //删除英雄
    public static function delHero($head,$hero){
        $cur = $head;
        while($cur->next != null){
            if($cur->next == $hero){
                break;
            }
            $cur = $cur->next;
        }
        $cur->next  = $hero->next;
        $hero->next  = null;
    }
}

$head = new hero();
$songjiang =new hero(1,'宋江','及时雨');
$lujunyi =new hero(2,'卢俊义','玉麒麟');

$head->next = $songjiang;
$songjiang->next = $lujunyi;

//默认
hero::showHero($head);
//加入到链表末端
$linchong = new hero(6,'林冲','豹子头');
hero::addHero($head,$linchong);
hero::showHero($head);
//按排名加入链表
$wuyong = new hero(3,'吴用','智多星');
hero::addHero2($head,$wuyong);
hero::showHero($head);
//修改英雄
$wuyong->name='吴用2';
hero::editHero($head,$wuyong);
hero::showHero($head);
//删除英雄
hero::delHero($head,$wuyong);
hero::showHero($head);

?>

源代码下载：SingleLine_1202.zip