Notice: Use of undefined constant APP_CONTROLLER - assumed 'APP_CONTROLLER' in /usr/home/hyu8012690001/htdocs/FrPHP/lib/Controller.php on line 29

Notice: Use of undefined constant APP_ACTION - assumed 'APP_ACTION' in /usr/home/hyu8012690001/htdocs/FrPHP/lib/Controller.php on line 30

Notice: Use of undefined constant APP_CONTROLLER - assumed 'APP_CONTROLLER' in /usr/home/hyu8012690001/htdocs/FrPHP/lib/Controller.php on line 37

Notice: Use of undefined constant APP_ACTION - assumed 'APP_ACTION' in /usr/home/hyu8012690001/htdocs/FrPHP/lib/Controller.php on line 37
错误信息提示示例：
方法不存在！