为什么获取不到config的自定义的值


echo 'URL_MODEL=',C('URL_MODEL');
echo "<br />";
echo 'VAR_PAG1E=', C('VAR_PAG1E');
echo "<br />";
echo $Blog->getLastSql();
exit;
=============》




$config = array();
$config = array(
'URL_MODEL'=>3, // 如果你的环境不支持PATHINFO 请设置为3
'DB_TYPE'=>'mysql',
'DB_HOST'=>'localhost',
'DB_NAME'=>'childDrawing',
'DB_USER'=>'root',
'DB_PWD'=>'',
'DB_PORT'=>'3306',
'DB_PREFIX'=>'child_',
'DEFAULT_MODULE' => 'Admin',
'SESSION_AUTO_START'=>true,
'APP_AUTOLOAD_PATH'=>'@.TagLib,@.ORG',
'TOKEN_ON' => false,
'URL_MODEL'=>'1',
'URL_ROUTER_ON' => true,
'URL_ROUTE_RULES' => array(
'cate/:id\d' => 'Admin/category',
'/^Admin\/(\d+)$/is' => 'Admin/show?id=:1',
'/^Admin\/(\d+)\/(\d+)/is'=> 'Admin/archive?year=:1&month=:2',
),
'SHOW_PAGE_TRACE'=>true,
'VAR_PAG1E'=>'p',
);
return $config;


============》
URL_MODEL=2
VAR_PAG1E=
SELECT * FROM `child_user_info` WHERE status >-1 ORDER BY addtime desc LIMIT 0,5



为什么URL_MODEL=2？