From 60fd09241094650f0848dd1bdaf7a3305cf8dd8d Mon Sep 17 00:00:00 2001
From: yanyongyu <yanyongyu_1@126.com>
Date: Tue, 5 Jan 2021 12:12:41 +0800
Subject: [PATCH] :bug: fix none message

---
 nonebot/adapters/__init__.py | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/nonebot/adapters/__init__.py b/nonebot/adapters/__init__.py
index 18c2e755..623d23e9 100644
--- a/nonebot/adapters/__init__.py
+++ b/nonebot/adapters/__init__.py
@@ -211,7 +211,7 @@ class Message(list, abc.ABC):
     """消息数组"""
 
     def __init__(self,
-                 message: Union[str, Mapping, Iterable[Mapping],
+                 message: Union[str, None, Mapping, Iterable[Mapping],
                                 T_MessageSegment, T_Message, Any] = None,
                  *args,
                  **kwargs):
@@ -221,7 +221,9 @@ class Message(list, abc.ABC):
           * ``message: Union[str, list, dict, MessageSegment, Message, Any]``: 消息内容
         """
         super().__init__(*args, **kwargs)
-        if isinstance(message, Message):
+        if message is None:
+            return
+        elif isinstance(message, Message):
             self.extend(message)
         elif isinstance(message, MessageSegment):
             self.append(message)