修改接口

@@ -1833,7 +1833,7 @@ class User extends Api
                     ->where('video_id',$video_s)
                     ->find();
                 if(!empty($res)){
-                    $this->error('error',['code'=>2]);
+                    $this->error('该属性视频您已经买过了',['code'=>2]);
                 }
                 $param['video_id'] = serialize($video);
             }else{
@@ -1845,7 +1845,7 @@ class User extends Api
                 foreach ($arr as &$v){
                     if(!empty($v['pic_id'])){
                         if($v['pic_id'] == $pic_id){
-                            $this->error('error',['code'=>2]);
+                            $this->error('您已经买过了',['code'=>2]);
                         }
                     }
                 }