globalaction.class.php
php codeclass globalaction extends action{ public function _initialize() { }}
indexaction.class.php
php codeclass indexaction extends globalaction{}
我这么写结果报错，说globalaction没有找到
------解决方案--------------------
class indexaction extends globalaction之前，globalaction.class.php必须被加载进来，不然肯定会报错的。
------解决方案--------------------
include(__app__/lib/globalaction.class.php)