diff --git a/app/admin/controller/v1/Product.php b/app/admin/controller/v1/Product.php
index 2404fca6..472f3e2b 100644
--- a/app/admin/controller/v1/Product.php
+++ b/app/admin/controller/v1/Product.php
@@ -273,7 +273,7 @@ class Product
     public function updownShelves()
     {
         $id = request()->param('id');
-        $product = ProductModel::bypk($id )->find();
+        $product = ProductModel::bypk($id)->find();
         if (empty($product)) {
             return error('请确认操作对象是否存在');
         }