問題描述

所以我在 discord.py 上制作了這個(gè)音樂不和諧機(jī)器人.這個(gè)機(jī)器人只是從我電腦上的本地 mp3 文件中播放一個(gè)播放列表.所以我有一個(gè)播放隊(duì)列的函數(shù)，它是這樣的:

So I am making this music discord bot on discord.py. This bot just plays a playlist from local mp3 files on my computer. So I have a function that plays the queue and it goes like this:

def play_song(ctx, voice):
    if len(queue) == 0:
        print('All the songs have been played')
        create_queue()
        return

    song_ = queue[0][len('songs/'):-16]
    voice.play(discord.FFmpegPCMAudio(queue[0]), after=lambda e: play_song(ctx, voice))
    print(f'Now playing {song_}')
    del queue[0]

我想將此函數(shù)轉(zhuǎn)換為異步函數(shù)，因?yàn)槲蚁Ｍ軌蛟诖撕瘮?shù)內(nèi)部的 discord.py 中發(fā)送消息并執(zhí)行其他操作.我面臨的問題是這一行的結(jié)果:

And I want to convert this function to an async function because I want to be able to send messages and do other things in discord.py inside this function. The problem I'm facing is a result of this line:

voice.play(discord.FFmpegPCMAudio(queue[0]), after=lambda e: play_song(ctx, voice))

如果我讓這個(gè)函數(shù)成為一個(gè)異步函數(shù)，那么我將不得不添加一個(gè) await 語句，如果我這樣做，它將是這樣的:

If I make this function an async function than I'll have to put an await statement, and If I do that it will be like this:

voice.play(discord.FFmpegPCMAudio(queue[0]), after=lambda e: await play_song(ctx, voice))

問題在于它給了我錯(cuò)誤:在異步函數(shù)之外等待"所以我也嘗試使用 asyncio.run()，然后在第一首歌之后它給了我一個(gè)巨大的錯(cuò)誤滾動(dòng)，接下來我該怎么辦?

The problem with that is that it's giving me the error: "await outside of async function" So I also tried using asyncio.run(), and then after the first song it's giving me a huge scroll of errors, What do I do next?

推薦答案

我找到了自己問題的答案.答案是使用 asyncio.Event()我是這樣做的:

I have found an answer to my own question. The answer is to use asyncio.Event() I did it like this:

async def play_song(ctx, voice):
    global stop_playing, pos_in_q, time_from_song
    event = asyncio.Event()
    event.set()
    while True:
        await event.wait()
        event.clear()
        if len(queue) == pos_in_q - 1:
            await ctx.send('Party is over! use the `.arse-play` to play again.')
            print('Party is over!')
            create_queue()
            break
        if stop_playing is True:
            stop_playing = False
            break

        song_ = queue[pos_in_q][len('songs/'):]
        voice.play(discord.FFmpegPCMAudio(queue[pos_in_q]), after=lambda e: event.set())
        print(f'Now playing {song_}')
        time_from_song = time.time()
        pos_in_q += 1

這篇關(guān)于在 discord.py 中播放音軌隊(duì)列的文章就介紹到這了，希望我們推薦的答案對大家有所幫助，也希望大家多多支持html5模板網(wǎng)！