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import requests
from bs4 import BeautifulSoup
#从BV号获取CID
def get_cid_from_bv ( bv_ids ) :
cids = [ ]
for bv_id in bv_ids :
# 视频详情 API 地址
video_url = f ' https://api.bilibili.com/x/web-interface/view?bvid= { bv_id } '
# 发送请求
response = requests . get ( video_url , headers = headers )
response . raise_for_status ( )
data = response . json ( )
# 提取 cid
if data . get ( ' code ' ) == 0 :
cid = data . get ( ' data ' , { } ) . get ( ' cid ' )
cids . append ( cid )
return cids
def get_danmu ( id ) :
global videosnumber
video_url = f ' https://api.bilibili.com/x/v1/dm/list.so?oid= { id } '
response = requests . get ( video_url , headers = headers ) #要爬取的网址
response . encoding = ' utf-8 ' #编码方式
html = response . text
soup = BeautifulSoup ( html ) #使用beautifulsoup库快速查找我们想要的信息
all_txt = soup . findAll ( " d " ) #寻找到所有包含d的行
txt = [ all_txts . attrs [ " p " ] for all_txts in all_txt ] #寻找到所有包含d的行中属性为p的值，
txtss = [ all_txts . string for all_txts in all_txt ] #寻找到所有包含d的行中的字符串数据，
txtsss = [ txts . replace ( ' ' , ' ' ) for txts in txtss ] #将字符串中的空格消除掉
videosnumber = videosnumber + 1
bulletnumber = len ( txtsss )
print ( f " 这是第 { videosnumber } 视频, 获取到 { bulletnumber } 弹幕 " )
time . sleep ( 1 ) #休眠防被封
return ( txtsss )
def main ( kword , mubiao ) :
bvs = [ ]
alltxt = [ ]
for i in range ( 100 ) :
cids = [ ]
cids = get_cid_from_bv ( bvs )
for id in cids :
if ( videosnumber > = mubiao ) : break
txt = get_danmu ( id )
alltxt = alltxt + txt
if ( videosnumber > = mubiao ) : break
return ( alltxt )
flag = 50 #你要爬的视频数量
altxt = main ( keword , flag )
