要使用youtubedl批量下載視頻，你可以使用Python的concurrent.futures庫(kù)來(lái)實(shí)現(xiàn)。以下是一個(gè)示例代碼：

import concurrent.futures
import os
import youtube_dl

def download_video(url, output_folder):
    ydl_opts = {
        'format': 'best',
        'outtmpl': output_folder + '/%(title)s.%(ext)s',
        'postprocessors': [{
            'key': 'FFmpegExtractAudio',
            'preferredcodec': 'mp3',
            'preferredquality': '192',
            'preferredduration': 'PT8S'
        }],
        'outtmpl': output_folder + '/%(title)s.%(ext)s',
    }
    with youtube_dl.YoutubeDL(ydl_opts) as ydl:
        ydl.download([url])

def batch_download(urls, output_folder):
    with concurrent.futures.ThreadPoolExecutor() as executor:
        for url in urls:
            executor.submit(download_video, url, output_folder)

# 示例用法
urls = [
    'https://www.youtube.com/watch?v=dQw4w9WgXcQ',
    'https://www.youtube.com/watch?v=dQw4w9WgXcQ'
]
output_folder = 'downloads'
batch_download(urls, output_folder)

這個(gè)代碼首先定義了一個(gè)download_video函數(shù)，用于單個(gè)視頻的下載。然后定義了一個(gè)batch_download函數(shù)，使用concurrent.futures.ThreadPoolExecutor來(lái)并發(fā)執(zhí)行多個(gè)下載任務(wù)。最后，我們提供了一些示例URL和輸出文件夾路徑，調(diào)用batch_download函數(shù)進(jìn)行批量下載。