PHP小教程之实现链表

class Hero
{
public $no;//排名
public $name;//名字
public $next=null;//$next是一个引用，指向另外一个Hero的对象实例 public function __construct($no='',$name='')
{
$this->no=$no;
$this->name=$name;
} static public function showList($head)
{
$cur = $head;
while($cur->next!=null)
{
echo "排名：".$cur->next->no."，名字：".$cur->next->name."
";
$cur = $cur->next;
}
}
//普通插入
static public function addHero($head,$hero)
{
$cur = $head;
while($cur->next!=null)
{
$cur = $cur->next;
}
$cur->next=$hero;
}
//有序的链表的插入
static public function addHeroSorted($head,$hero)
{
$cur = $head;
$addNo = $hero->no;
while($cur->next->no <= $addNo)
{
$cur = $cur->next;
}
/*$tep = new Hero();
$tep = $cur->next;
$cur->next = $hero;
$hero->next =$tep;*/
$hero->next=$cur->next;
$cur->next=$hero;
} static public function deleteHero($head,$no)
{
$cur = $head;
while($cur->next->no != $no && $cur->next!= null)
{
$cur = $cur->next;
}
if($cur->next->no != null)
{
$cur->next = $cur->next->next;
echo "删除成功
";
}
else
{
echo "没有找到
";
}
} static public function updateHero($head,$hero)
{
$cur = $head;
while($cur->next->no != $hero->no && $cur->next!= null)
{
$cur = $cur->next;
}
if($cur->next->no != null)
{
$hero->next = $cur->next->next;
$cur->next = $hero;
echo "更改成功
";
}
else
{
echo "没有找到
";
}
}
}

//创建head头
$head = new Hero();
//第一个
$hero = new Hero(1,'111');
//连接
$head->next = $hero;
//第二个
$hero2 = new Hero(3,'333');
//连接
Hero::addHero($head,$hero2);
$hero3 = new Hero(2,'222');
Hero::addHeroSorted($head,$hero3);
//显示
Hero::showlist($head);
//删除
Hero::deleteHero($head,4);
//显示
Hero::showlist($head);
//更改
$hero4=new Hero(2,'xxx');
Hero::updateHero($head,$hero4);
//显示
Hero::showlist($head);