请教大家啊

Notice: Undefined index: controller in F:\xampp\htdocs\MyProject\thinkphp\yytpdemo\index.php on line 15

Notice: Undefined index: method in F:\xampp\htdocs\MyProject\thinkphp\yytpdemo\index.php on line 16

Fatal error: Call to undefined function C() in F:\xampp\htdocs\MyProject\thinkphp\yytpdemo\index.php on line 17

15:$controller = in_array($_GET['controller'],$controllerAllow)?daddslashes($_GET['controller']):'index';
16:$method = in_array($_GET['method'],$methodAllow)?daddslashes($_GET['method']):'index';
17:C($controller,$method);//

我也有引入这个index.php啊...

//引入封装的方法文件
require_once ('Application/Home/php/function.php');
//require './Application/Home/php/function.php';