update code

plugins/withdraw.py

@@ -0,0 +1,15 @@
+from nonebot import on_command
+from nonebot.adapters.cqhttp import Bot, GroupMessageEvent
+from nonebot.typing import T_State
+import re
+
+
+withdraw_msg = on_command('撤回', priority=5, block=True)
+
+
+@withdraw_msg.handle()
+async def _(bot: Bot, event: GroupMessageEvent, state: T_State):
+    r = re.search(r'\[CQ:reply,id=(\d*)]', event.raw_message)
+    if r:
+        await bot.delete_msg(message_id=int(r.group(1)), self_id=int(bot.self_id))
+