如何在discord.py中响应错误的用户命令 [英] How to respond to wrong user command in discord.py

问题描述

如果用户键入 / foo 并且该命令不存在，如何发送消息此命令不存在？

If user types /foo and that command does not exist, how do I send the message saying "This command does not exist"?

这也许很简单，但我有点困惑。

This is maybe pretty simple but I'm bit confused.

如果您需要更多信息，请发表评论。

If you need more info please comment.

谢谢！

推荐答案

您可以定义 on_command_error 事件（请注意，与已记录的文档相比，异步分支上的参数顺序相反如果出现 CommandError ，将调用该命令）。

You can define an on_command_error event (Note that the order of arguments is reversed on the async branch, compared to the documented rewrite branch) that will be called if there if a CommandError is raised.

然后您可以检查错误处理程序（如果错误是 CommandNotFound 错误并相应地进行处理：

You can then check in that error handler if the error is a CommandNotFound error and handle it accordingly:

@bot.event
async def on_command_error(error, ctx):
    if isinstance(error, commands.CommandNotFound):
        await bot.send_message(ctx.message.channel, "No such command")
    else:
        raise error

这假设您正在使用 discord.ext.commands 扩展名来编写命令（应该这样做）。

This assumes you are using the discord.ext.commands extension to write your commands (which you should).

这篇关于如何在discord.py中响应错误的用户命令的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！