/**
 * 建议部署在入口中间层
 */
public function _initialize($con = '') {
    parent::_initialize(); // TODO: Change the autogenerated stub
    $action = explode('.', $this->request->action());

    $con        = 'app\practice\controller\\' . $action[0];
    $controller = new $con();

    $action = $action[1] ?? 'index';
    $controller->$action();
    return die;
}