I've been going through some examples on how to make a Discord Python Bot and I've been seeing client and bot being used almost interchangeably and I'm not able to find when you would use which one when.

例如:

client = discord.Client()
@client.event
async def on_message(message):
    # we do not want the bot to reply to itself
    if message.author == client.user:
        return

    if message.content.startswith('$guess'):
        await client.send_message(message.channel, 'Guess a number between 1 to 10')

    def guess_check(m):
        return m.content.isdigit()

@client.event
async def on_ready():
    print('Logged in as')
    print(client.user.name)
    print(client.user.id)
    print('------')

client.run('token')

对比

bot = commands.Bot(command_prefix='?', description=description)
@bot.event
async def on_ready():
    print('Logged in as')
    print(bot.user.name)
    print(bot.user.id)
    print('------')

@bot.command()
async def add(left : int, right : int):
    """Adds two numbers together."""
    await bot.say(left + right)

bot.run('token')

我开始认为它们具有非常相似的品质并且可以做同样的事情，但个人偏好是与客户端一起使用而不是与机器人一起使用.但是，它们确实存在差异，客户端具有 on_message 而机器人等待 prefix 命令.

client = discord.Client()
bot = commands.Bot(".")

# do stuff with bot

bot = commands.Bot(".")

# do stuff with bot