## 代码 ``` <?php namespace app\agent\controller; use think\Controller; use think\Db; class RbacController extends Controller { /** * 角色管理列表 */ public function index() { $data = Db::name('role')->order(["list_order"=>"ASC","id"=>"DESC"])->select(); $this->assign('roles',$data); return $this->fetch(); } } ```