# 控制器 ## 代码 ``` <?php namespace app\agent\controller; use think\Controller; use think\Db; class UserController extends Controller { /** * 管理员添加 */ public function add() { $roles = Db::name('role')->where(['status' => 1])->order("id DESC")->select(); $this->assign("roles", $roles); return $this->fetch(); } } ```