如何在 discord python 中使用 asyncio 打破 while 循环？

Question

client = commands.Bot(command_prefix = '!')
stop_var = False

@client.event
async def on_ready():
  print('Bot is ready.')

@client.command()
async def hello(ctx):
  while (stop_var==False):
    await asyncio.sleep(1)
    await ctx.send('Hello!')
    if stop_var:
      break

@client.command()
async def stop(ctx):
  await ctx.send('Stopped!')
  stop_var = True

我正在努力做到这一点，当我键入 !stop 时，!hello 命令循环结束，但我的代码不起作用。

Answer 1

这似乎有效：

@client.command()
async def hello(ctx):
    stop_var = False
    while (not stop_var):
        await asyncio.sleep(1)
        await ctx.send('Hello!')
        def check(msg: discord.Message):
            return not msg.author.bot and msg.content.lower() == "!stop"
        try:
            if await client.wait_for("message", check=check, timeout=1.5):
                await ctx.send("Stopped")
                stop_var = True
        except asyncio.TimeoutError:
            print("no stop")

此外，如果您覆盖了 on_command_error 事件，您可以使用它来避免触发它：

@client.command()
async def hello(ctx):
    stop_var = False
    while (not stop_var):
        await asyncio.sleep(1)
        await ctx.send('Hello!')
        def check(ctx):
            return not ctx.author.bot and ctx.command.name == "stop"
        try:
            if await client.wait_for("command", check=check, timeout=1.5):
                stop_var = True
        except asyncio.TimeoutError:
            print("no stop")


@client.command()
async def stop(ctx):
    await ctx.send("Stopped")

如何在 discord python 中使用 asyncio 打破 while 循环？

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