diff --git a/clients/pyauto/README.MD b/clients/pyauto/README.MD
index cf129c3..eb50dcc 100644
--- a/clients/pyauto/README.MD
+++ b/clients/pyauto/README.MD
@@ -98,6 +98,7 @@ def main():
         撤回消息函数装饰器
         """
         print(msg)
+        print(msg.get_revoke_msg())
     
     def judge(msg: WxMsg):
         """
diff --git a/clients/pyauto/demo.py b/clients/pyauto/demo.py
index 2470cbf..7b0bccd 100644
--- a/clients/pyauto/demo.py
+++ b/clients/pyauto/demo.py
@@ -83,6 +83,7 @@ def main():
         撤回消息函数装饰器
         """
         print(msg)
+        print(msg.get_revoke_msg())
 
     def judge(msg: WxMsg):
         """
diff --git a/clients/pyauto/wcfauto/auto_res/bot.py b/clients/pyauto/wcfauto/auto_res/bot.py
index ee8d9d0..a06c83a 100644
--- a/clients/pyauto/wcfauto/auto_res/bot.py
+++ b/clients/pyauto/wcfauto/auto_res/bot.py
@@ -144,8 +144,6 @@ class Register(Event):
         raise NotImplementedError
 
     def group_changed_register(self,
-                               isGroup: bool = False,
-                               isDivision: bool = False,
                                isPyq: bool = False,
                                allow_other_receive: bool = True):
         """
diff --git a/clients/pyauto/wcfauto/auto_res/core.py b/clients/pyauto/wcfauto/auto_res/core.py
index 63eb71a..9f971ee 100644
--- a/clients/pyauto/wcfauto/auto_res/core.py
+++ b/clients/pyauto/wcfauto/auto_res/core.py
@@ -79,7 +79,9 @@ def _processing_async_func(self,
                     return await func(bot, message)
             except:
                 traceback.print_exc()
+
         return __async_func
+
     return _async_func
 
 
@@ -109,7 +111,9 @@ def _processing_universal_func(self,
                     return func(bot, message)
             except:
                 traceback.print_exc()
+
         return universal_func
+
     return _universal_func
 
 
@@ -144,8 +148,6 @@ def revoke_message_register(self,
 
 
 def group_changed_register(self,
-                           isGroup: bool = False,
-                           isDivision: bool = False,
                            isPyq: bool = False,
                            allow_other_receive: bool = True):
     def judge_msg(msg):
@@ -154,9 +156,9 @@ def group_changed_register(self,
                 return True
         return False
 
-    return self._processing_async_func(isGroup,
-                                       isDivision,
-                                       isPyq,
+    return self._processing_async_func(isPyq=isPyq,
+                                       isGroup=True,
+                                       isDivision=True,
                                        register_name='groupChanged',
                                        allow_other_receive=allow_other_receive,
                                        judge_msg=judge_msg)
diff --git a/clients/pyauto/wcfauto/msg_list.py b/clients/pyauto/wcfauto/msg_list.py
index dc9257f..dbe21de 100644
--- a/clients/pyauto/wcfauto/msg_list.py
+++ b/clients/pyauto/wcfauto/msg_list.py
@@ -9,7 +9,7 @@ class messageList(list):
         super(messageList, self).__init__(*args, **kwargs)
         self.__isRunning = True
         self.__th = None
-        self.__time_step = 2*60
+        self.__time_step = 3*60
         self.__msg_queen = queue.Queue()
         self.start()
 
diff --git a/clients/pyauto/wcfauto/wcf.py b/clients/pyauto/wcfauto/wcf.py
index 5ec1dc5..aac36ab 100644
--- a/clients/pyauto/wcfauto/wcf.py
+++ b/clients/pyauto/wcfauto/wcf.py
@@ -40,6 +40,8 @@ class WxMsgV2(WxMsg):
     """
 
     def __init__(self, msg: WxMsg) -> None:
+        self._is_group = msg._is_group
+        self._is_self = msg._is_self
         self._type = msg.type
         self._id = msg.id
         self._ts = msg.ts