update

src/main/java/com/gogirl/application/order/mall/impl/MallOrderServiceImpl.java

@@ -419,6 +419,7 @@ public class MallOrderServiceImpl extends ServiceImpl<MallOrderMapper, MallOrder
         } else {
             mallOrder.setTotalPayAmount(mallOrder.getTotalAmount());
         }
+        mallOrder.setTotalPayAmount(mallOrder.getTotalAmount().add(mallOrder.getFreight()));
         mallOrderMapper.updateById(mallOrder);
     }