# 获取弹幕地址


def get_danmu_url(video_str):
    url = video_str
    response = requests.get(url=url, headers=headers)
    html = response.text
    cid = re.search('"cid":(.*?),', html).groups()[0]
    danmu_url = f'https://comment.bilibili.com/{cid}.xml'
    return danmu_url

# 获取视频地址


def get_vedio(bv):
    vedio_url = "https://www.bilibili.com/video/"+bv
    return vedio_url
# 获取bv号


def get_bvid(url, pos):

    # 通过搜索api“https://api.bilibili.com/x/web-interface/search/all/v2?page=1-15&keyword=”获取前300个视频的bvid
    res = requests.get(url=url, headers=headers).text
    json_dict = json.loads(res)
    return json_dict["data"]["result"][11]["data"][pos]["bvid"]