update rank

Controller/CloudStorage.py

@@ -915,4 +915,4 @@ class CloudStorageView(View):
                                                           'result': {"redirectUrl": redirectUrl, "orderID": orderID},
                                                           'error_code': 0})
                 else:
-                    return response.json(10, '生成订单错误')
+                    return response.json(10, '生成订单错误.')