bug修改

@@ -408,9 +408,9 @@ class Topic extends Api
         $good = TopicGood::get(['user_id'=>$this->auth->id,'topic_id'=>$topic_id]);
         if(empty($good)){
             TopicGood::create($where);
-            $this->success('点赞成功');
             // 增加话题热力值（点赞+1热力值）
             $info->setInc('hot_num');
+            $this->success('点赞成功');
         }
         $good->delete();
         $this->success('取消点赞');