From 3564228183047906045fe56d352808798b6bae40 Mon Sep 17 00:00:00 2001
From: yanyongyu <yanyongyu_1@126.com>
Date: Wed, 4 Aug 2021 19:11:59 +0800
Subject: [PATCH] :bug: fix message segment mapping error

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

diff --git a/nonebot/adapters/_base.py b/nonebot/adapters/_base.py
index 8223aa0e..7350aad8 100644
--- a/nonebot/adapters/_base.py
+++ b/nonebot/adapters/_base.py
@@ -275,10 +275,10 @@ class MessageSegment(Mapping, abc.ABC, Generic[TM]):
         return self.get_message_class()(other) + self  # type: ignore
 
     def __getitem__(self, key: str):
-        return self.data[key]
+        return getattr(self, key)
 
     def __setitem__(self, key: str, value: Any):
-        self.data[key] = value
+        return setattr(self, key, value)
 
     def __iter__(self):
         yield from self.data.__iter__()