问不协调按钮避免按钮垃圾邮件

EN

class ButtonOnCooldown(commands.CommandError):
  def __init__(self, retry_after: float):
    self.retry_after = retry_after

# you can also use a lambda if it's simple enough
# this function works similarly to the `key` in functions `sorted` and `list.sort`
def key(interaction: discord.Interaction):
  return interaction.user

class View(discord.ui.View):
  def __init__(self, *, timeout: float = 180.0):
    super().__init__(timeout=timeout)
    self.value = 0
    # create a CooldownMapping with a rate of 1 token per 3 seconds using our key function
    self.cd = commands.CooldownMapping.from_cooldown(1.0, 3.0, key)

  async def interaction_check(self, interaction: discord.Interaction):
    retry_after = self.cd.update_rate_limit(interaction)
    if retry_after:
      # rate limited
      # we could raise `commands.CommandOnCooldown` instead, but we only need the `retry_after` value
      raise ButtonOnCooldown(retry_after)

    # not rate limited
    return True

  async def on_error(self, interaction: discord.Interaction, error: Exception, item: discord.ui.Item):
    if isinstance(error, ButtonOnCooldown):
      seconds = int(error.retry_after)
      unit = 'second' if seconds == 1 else 'seconds'
      await interaction.response.send_message(f"You're on cooldown for {seconds} {unit}!", ephemeral=True)
    else:
      # call the original on_error, which prints the traceback to stderr
      await super().on_error(interaction, error, item)

  @discord.ui.button(label='Count', style=discord.ButtonStyle.green)
  async def count(self, interaction: discord.Interaction, button: discord.ui.Button):
    self.value += 1
    await interaction.response.send_message(self.value, ephemeral=True)

# send the view
await ctx.send('Start counting!', view=View())

users_with_open_ticket = []

@bot.command(name="open_ticket")
async def open_ticket(ctx : commands.Context):
    
    async def my_callback(interaction : discord.Interaction):
        global users_with_open_ticket
        if interaction.user.id in users_with_open_ticket:
            await interaction.response.send_message(content="You already have an open ticket!")
            return
        users_with_open_ticket.append(interaction.user.id)
        # Continue with your code...

    button = discord.ui.Button(label="Create ticket")
    button.callback = my_callback

    view = discord.ui.View()
    view.add_item(button)
    await ctx.send(content="Your message", view=view)