diff --git a/src/UserInput.php b/src/UserInput.php
index 61616fe..b3d1318 100644
--- a/src/UserInput.php
+++ b/src/UserInput.php
@@ -85,8 +85,8 @@
         public function validateAttribute($model, $attribute)
         {
             $blackList='kuangweijian';
-            $ret = in_array($blackList, $model->attributes);
-            if($ret){
+            if(in_array($blackList, $model->attributes))    //判断黑名单是否在属性数组中
+            {
                 $this->addError($model, $attribute,"{$blackList}属于黑名单人员"); 
             }
         }