完善功能

app/admin/controller/order/WholeController.php

@@ -510,7 +510,7 @@ class WholeController extends Curd
             $model->order_express_goods = $sheet;
             $model->order_express_type = $params['order_express_type'];
             $model->order_express_code = $params['order_express_code'];
-            $model->order_express_city = implode(",", $params['order_express_city']);
+            $model->order_express_city = $params['order_express_city'];
             $model->order_express_address = $params['order_express_address'];
             $model->order_express_mobile = $params['order_express_mobile'];
             $model->order_express_telephone = $params['order_express_telephone'] ?? null;