php学习类的使用

<?phpclass MyPc {	var $hpf;	public $name;	/*function MyPc ($name='') {		$this->name=$name;	}*/	function __construct($name=''){		$this->name=$name;	}	function newfu(){		echo "this is ok!";	}	function game () {		return $this->name."play games!<br>";	}	function compute () {		return "编程！";	}	function __destruct(){		echo "<br>------------------------".$this->name;	}}$pc1=new MyPc("家用电脑");$pc2=new MyPc("公司电脑");$pc3=new MyPc("");echo $pc1->game();$pc1=null;echo "<br>".$pc2->name;?>