我正在尝试让用户回复机器人响应，然后发送另一条消息

Question

How could I make the bot respond again? I trying to make the bot make a user respond to the message being sent then respond saying if it's too late or they did it.

  import discord
  from discord.ext import commands
  import time
  import random
  @commands.command(aliases=["RandomChocolate", "choco"])
  @commands.cooldown(1, 15, commands.BucketType.user)
  async def chocolate(self, ctx):
    food=["hershey", "kitkat", "milk"]
    rF = random.choice(food)
    rFC = rF[:1]
    rFL = rF[-1]
    await ctx.send(f"**Hint:** It starts with **{rFC}** 
    and ends with **{rFL}**, you have 15 seconds to answer 
     by the way.")
     if ctx.message.content == rF:
       await ctx.send("Ok")
     else:
       time.sleep(15)
       await ctx.send(f"Too Late!")

Answer 1

You can use await bot.wait_for('message') to wait for a message. By passing a check argument, we can also specify details about the message we're waiting for. I'm reusing my message_check code from this other answer

class MyCog(commands.Cog):
  def __init__(self, bot):
    self.bot = bot
  @commands.command(aliases=["RandomChocolate", "choco"])
  @commands.cooldown(1, 15, commands.BucketType.user)
  async def chocolate(self, ctx):
    food=["hershey", "kitkat", "milk"]
    rF = random.choice(food)
    rFC = rF[:1]
    rFL = rF[-1]
    await ctx.send(f"**Hint:** It starts with **{rFC}** 
    and ends with **{rFL}**, you have 15 seconds to answer 
     by the way.")
    try:
      response = await self.bot.wait_for("message", timeout=15, check=message_check(channel=ctx.channel, author=ctx.author, content=rF))
      await ctx.send("OK")
    except asyncio.TimeoutError:
      await ctx.send("Too Late!")

Answer 2

You don't want to bundle that into one command. Also time.sleep stops the entire program, asyncio.sleep suspends the currently running coroutine.

import asyncio
import discord
from discord.ext import commands
import time
import random

chocolate_users = {}


    @commands.command(aliases=["RandomChocolate", "choco"])
    @commands.cooldown(1, 15, commands.BucketType.user)
    async def chocolate(self, ctx):
        food = ["hershey", "kitkat", "milk"]
        rF = random.choice(food)
        rFC = rF[:1]
        rFL = rF[-1]
        await ctx.send(f"**Hint:** It starts with **{rFC}** and ends with **{rFL}**, you have 15 seconds to answer by the way.")
        chocolate_users[ctx.message.author.id] = [rF, time.time()+15]

@client.event()
async def on_message(message):
    if message.author.id in chocolate_users.keys(): # check if the user started a guess, otherwise do nothing
        data = chocolate_users[message.author.id]
        if time.time() > data[1]:
            await message.channel.send('You exceeded the 15 second time limit, sorry.')
            del chocolate_users[message.author.id]
        elif message.content.lower() != data[0]:
            await message.channel.send('Sorry, that is wrong. Please try again.')
        else:
            await message.channel.send('Great job, that is correct!')
            ## other stuff to happen when you get it right ##
            del chocolate_users[message.author.id]

The only downside to this is that it waits until you send a message before telling you that you passed the time.