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import requests
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import re
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count = 0
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def get_page_url(n):
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"""
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此函数用于获取页面的url
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n代表获取的页数
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返回一个存储各页面url的列表
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"""
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page_url_list = [] # 存储页面网址的列表
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for i in range(n):
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if i == 0:
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page_url = "https://search.bilibili.com/all?keyword=2024%E5%B7%B4%E9%BB%8E%E5%A5%A5%E8%BF%90%E4%BC%9A&from_source=webtop_search&spm_id_from=333.1007&search_source=5"
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page_url_list.append(page_url)
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i += 1
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else:
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page_url = f"https://search.bilibili.com/all?keyword=2024%E5%B7%B4%E9%BB%8E%E5%A5%A5%E8%BF%90%E4%BC%9A&from_source=webtop_search&spm_id_from=333.1007&search_source=5&page={i + 1}&o={i * 36}"
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page_url_list.append(page_url)
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i += 1
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return page_url_list
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# 设置请求头。为了应对B站的反爬虫,我们需要伪装成浏览器进行请求
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header = {"user-agent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36 Edg/128.0.0.0"}
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def get_cid(page_url_list):
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"""
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本函数用于获取各个页面视频的cid
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返回存储综合排序前300的视频的cid的列表
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"""
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global count
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cid_list = [] # 存储cid的列表
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for page_url in page_url_list:
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if count >= 300:
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break
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else:
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response = requests.get(url = page_url,headers = header)
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response.encoding = 'utf-8'
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data = response.text
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content = re.findall('"//www.bilibili.com/video/(.*?)/"',data)
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content = set(content)
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content = list(content)
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for bvid in content:
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url = f"https://api.bilibili.com/x/player/pagelist?bvid={bvid}&jsonp=jsonp"
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response = requests.get(url=url, headers=header)
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response.encoding = 'utf-8'
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data = response.text
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content = re.findall('{"cid":(.*?),', data)
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cid_list.append(content[0])
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count += 1
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if count >= 300:
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break
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return cid_list
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def get_danmu(cid_list):
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"""
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本函数用于获取弹幕
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"""
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danmu_list = []
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for cid in cid_list:
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url = f"https://comment.bilibili.com/{cid}.xml"
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response = requests.get(url=url, headers=header)
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response.encoding = 'utf-8'
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data = response.text
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content = re.findall('<d p=".*?">(.*?)</d>', data)
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danmu_list.extend(content)
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return danmu_list
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cid_list = get_cid(get_page_url(10))
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danmu_list = get_danmu(cid_list)
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for danmu in danmu_list: # 遍历弹幕
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with open('弹幕.txt', 'a', encoding='utf-8') as f: # 打开文件准备写入
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f.write(danmu + '\n') # 写入弹幕
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