批量修改也需要单独设置权限，默认只有status

application/admin/controller/user/User.php

@@ -14,6 +14,7 @@ class User extends Backend
     
     protected $searchFields = 'id,username,nickname';
     protected $selectpageFields = 'id,username,nickname,mobile';
+    protected $multiFields = 'is_tuijian';
     /**
      * User模型对象
      * @var \app\admin\model\User