$config = self::init($module);// ？橐蠡捍娌槌$request->cache($config['request_cache'],$config['request_cache_expire'],$config['request_cache_except']);} else {throw new HttpException(404, 'module not exists:' . $module);}} else {// 单一？椴渴$module = '';$request->module($module);}// 设置默认过滤机造$request->filter($config['default_filter']);