如何读不和谐的一行

Question

我正在为不一致编写一个机器人，有一个命令($ bone)，机器人在其中写下了以下内容：“从1-9中选择一个数字”，然后用户应该回答，这是我如何读取他写数字的行？

Answer 1

正如评论中提到的，我们将使用一个名为wait_for的协程，它等待像message：https://discordpy.readthedocs.io/en/latest/api.html#discord.Client.wait_for这样的事件

因为这些事件与我们可能使用bot.event连接到的事件相同，所以我们将能够处理返回的消息。

@bot.command()
async def bone(ctx):
    await ctx.send("Select a number 1-9")
    
    def my_check_func(message): #A checking function: When we return True, consider our message "passed".
        if message.author == ctx.author: #Make sure we're only responding to the original invoker
            return True
        else:
            return False

    response = await bot.wait_for("message", check=my_check_func) #This waits for the first message event that passes the check function.
    #This execution process now freezes until a message that passes that check is sent,
    #but other bot interactions can still happen.
    c = response.content #equal to message.content, because response IS a message
    if c.isdigit() and 1 <= int(c) <= 9: #if our response is a number equal to 1, 9, or between those...
        await ctx.send("You sent: {}".format(response.content))
    else:
        await ctx.send("That's not a number between 1 and 9!")

真实的交互示例来证明它是有效的：

Cook1
$bone

Tutbot
Select a number 1-9
Cook1
4

Tutbot
You sent: 4

Cook1
$bone

Tutbot
Select a number 1-9

Cook1
no

Tutbot
That's not a number between 1 and 9!