如何使datetime在discord.py中定时查看时间并发送消息

import discord
import datetime
import asyncio

client = discord.Client()

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

    while True:
        now = datetime.datetime.now()
        current_time = now.strftime("%H:%M:%S")

        if current_time == "09:00:00":  # 设置定时发送的时间
            channel = client.get_channel(1234567890)  # 替换为你要发送消息的频道ID
            await channel.send("现在是早上9点啦！")

        await asyncio.sleep(1)  # 每秒钟检查一次时间

client.run('YOUR_BOT_TOKEN')  # 替换为你的机器人令牌