- abstract class BaseShop
- {public function buy($gid)
- {
- echo '你购买了 ID 为 :' . $gid . '的商品';
- }
- public function sell($gid)
- {
- echo '你购卖 ID 为 :' . $gid . '的商品';
- }
- public function view($gid)
- {
- echo '你浏览了 ID 为 :' . $gid . '的商品';
- }
- }
- class BallShop extends BaseShop
- {
- var $itme_id = null;
- public function __construct()
- {
- $this->itme_id = 2314;
- }
- public function open()
- {
- $this->sell($this->itme_id);
- }
- }
来源: http://www.bubuko.com/infodetail-2610429.html