优化代码

frontend/controllers/MarketingStrategyController.php

@@ -582,6 +582,9 @@ class MarketingStrategyController extends UserBaseController
                 $ids[] = $item->id;
             }
         }
+        if(count($ids) == 0) {
+            return $result;
+        }
         $result['success'] = true;
         $result['ids'] = join(',',$ids);
         $result['celuo_id'] = $yingxiao_item->id;