name = $name;    }        public function Show() {        echo "装扮的{$this->name}";    }}/** * 服饰类 * @author wangdk * */class Finery extends Person {    protected $component;        public function __construct($component) {        $this->component = $component;    }        public function Show() {        if ($this->component) {            $this->component->Show();        }    }}class TShirts  extends Finery {    public function Show()    {        echo '大体恤！';       parent::Show();    }}class BigTrouser extends  Finery{    public function Show()    {        echo '垮裤';        parent::Show();    }}$obj = new Person('小王');$t = new TShirts($obj);$b = new BigTrouser($t);$b->Show();?>