修改撤回订单

app/JsonRpc/OrderService.php

@@ -650,6 +650,9 @@ class OrderService implements OrderServiceInterface
             'order' => $order,
             'ads' => $ads,
         ];
+        if($order==0){
+            return Result::error("此订单不可撤回");
+        }
         return Result::success($result);
     }
     /**