// 设置当前请求的控制器、操作$request->controller(Loader::parseName($controller, 1))->action($actionName);// 监听module_initHook::listen('module_init', $request);$instance = Loader::controller($controller, $config['url_controller_layer'], $config['controller_suffix'], $config['empty_controller']);if (is_null($instance)) {throw new HttpException(404, 'controller not exists:' . Loader::parseName($controller, 1));}// 获取当前操作名$action = $actionName . $config['action_suffix'];$vars = [];if (is_callable([$instance, $action])) {// 执行操作方法$call = [$instance, $action];} elseif (is_callable([$instance, '_empty'])) {