###*路由常量*
* * * * *
__LANGUAGE__ ----> Route::addLanguage时取值
__THEME__ ----> Route::addTheme时取值
__??__ ----> Route::addGroup时取值,名称为组名
__MODULE__ ----> Route::addGroup([
'name'=>'module',
'allowed'=>['home','back'],
'default'=>'home',
]);
__URL__----> Route::build()时取值
