Python爬虫之爬取并下载哔哩哔哩视频

亲���使用过，太好用了

# 导入requests模块，模拟发送请求import requests# 导入jsonimport json# 导入reimport re# 定义请求头headers = {    'Accept': '*/*',    'Accept-Language': 'en-US,en;q=0.5',    'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36'}# 正则表达式，根据条件匹配出值def my_match(text, pattern):    match = re.search(pattern, text)    print(match.group(1))    print()    return json.loads(match.group(1))def download_video(old_video_url, video_url, audio_url, video_name):    headers.update({"Referer": old_video_url})    print("开始下载视频：%s" % video_name)    video_content = requests.get(video_url, headers=headers)    print('%s视频大小：' % video_name, video_content.headers['content-length'])    audio_content = requests.get(audio_url, headers=headers)    print('%s音频大小：' % video_name, audio_content.headers['content-length'])    # 下载视频开始    received_video = 0    with open('%s_video.mp4' % video_name, 'ab') as output:        while int(video_content.headers['content-length']) > received_video:            headers['Range'] = 'bytes=' + str(received_video) + '-'            response = requests.get(video_url, headers=headers)            output.write(response.content)            received_video += len(response.content)    # 下载视频结束    # 下载音频开始    audio_content = requests.get(audio_url, headers=headers)    received_audio = 0    with open('%s_audio.mp4' % video_name, 'ab') as output:        while int(audio_content.headers['content-length']) > received_audio:            # 视频分片下载            headers['Range'] = 'bytes=' + str(received_audio) + '-'            response = requests.get(audio_url, headers=headers)            output.write(response.content)            received_audio += len(response.content)    # 下载音频结束    return video_nameif __name__ == '__main__':    # 换成你要爬取的视频地址    url ='https://www.bilibili.com/video/BV1zK4y1B7Z8/?share_source=copy_web'    # 发送请求，拿回数据    res = requests.get(url, headers=headers)    # 视频详情json    playinfo = my_match(res.text, '__playinfo__=(.*?)')    # 视频内容json    initial_state = my_match(res.text, r'__INITIAL_STATE__=(.*?);\(function\(\)')    # 视频分多种格式，直接取分辨率最高的视频 1080p    video_url = playinfo['data']['dash']['video'][0]['baseUrl']    # 取出音频地址    audio_url = playinfo['data']['dash']['audio'][0]['baseUrl']    video_name = initial_state['videoData']['title']    print('视频名字为：video_name')    print('视频地址为：', video_url)    print('音频地址为：', audio_url)    download_video(url, video_url, audio_url, video_name)

它可以爬取并下载视频文件和音频文件！