update

@@ -357,7 +357,7 @@ class ProductLogic extends  BaseLogic
                 $param['gallery'][$k] = $v;
                 $param['gallery'][$k] = $v;
             }
             }
             $thumb = $param['gallery'][0] ?? [];
             $thumb = $param['gallery'][0] ?? [];
-            if(!empty($thumb)){
+            if(isset($thumb['url']) && $thumb['url']){
                 //生成缩略图
                 //生成缩略图
                 $thumb['url'] = thumbImageByUrl($thumb['url']);
                 $thumb['url'] = thumbImageByUrl($thumb['url']);
             }
             }