字符串替换操作移后

Controller/IotCoreController.py

@@ -68,11 +68,12 @@ class IotCoreView(View):
         token = request_dict.get('token', None)
         language = request_dict.get('language', None)
         time_stamp = request_dict.get('time_stamp', None)
-        device_version = request_dict.get('device_version', None).replace('.', '_')  # 物品组命名不能包含'.'
+        device_version = request_dict.get('device_version', None)
 
         if not all([token, language, time_stamp, device_version]):
             return response.json(444, {'param': 'token, language, time_stamp, device_version'})
 
+        device_version = device_version.replace('.', '_')  # 物品组命名不能包含'.'
         try:
             # 时间戳token校验
             no_rtc = request_dict.get('no_rtc', None)