您可以使用 on_message() 事件并将频道历史记录的限制设置为 2:

You can use the on_message() event and set the channel history's limit to 2 for this:

@bot.event
async def on_message(message):
    recent_author = (await message.channel.history(limit=2).flatten())[1].author
    if message.author == recent_author:
        await message.delete()

history() 协程首先获取最新消息，除非另有说明，因此您可以将限制设置为 2 以获取用户刚刚发送的消息之前的最新消息.

The history() coroutine gets the newest messages first, unless specified otherwise, so you can set the limit to 2 to get the most recent message before the one the user just sent.

参考资料:

• Messageable.history()代码>
• Message.author
• Message.delete()