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import time
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import re
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import requests
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headers = {
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"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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"Cookie":"buvid4=D16319A3-9CCF-7099-A512-0A135AD5785B47915-023052812-b1nz50QSFWB5YJLoC8St7Q%3D%3D; buvid_fp_plain=undefined; enable_web_push=DISABLE; header_theme_version=CLOSE; DedeUserID=5493983; DedeUserID__ckMd5=5158623efb606499; CURRENT_FNVAL=16; blackside_state=0; CURRENT_BLACKGAP=0; FEED_LIVE_VERSION=V_WATCHLATER_PIP_WINDOW3; _uuid=65D18E104-D381-1D7B-4191-BB14FBF71016F05662infoc; CURRENT_QUALITY=116; buvid3=5C4356FC-CED4-B797-D0E9-0D465C57237867779infoc; b_nut=1723395567; rpdid=|(u)~Ju~J|kl0J'u~kJJml~u); LIVE_BUVID=AUTO8217257278253243; home_feed_column=5; bili_ticket=eyJhbGciOiJIUzI1NiIsImtpZCI6InMwMyIsInR5cCI6IkpXVCJ9.eyJleHAiOjE3MjY2NzExOTIsImlhdCI6MTcyNjQxMTkzMiwicGx0IjotMX0.HL4benw1AXqZyCPuhdJ0gWt_ntTJ11SaspK8rVkM4Nw; bili_ticket_expires=1726671132; SESSDATA=62b3d1f9%2C1741976682%2C01ac3%2A92CjBKLlT2PXjk2hmj_l4GXirVUtBEUJu-ii7ymQtB_b7urFREHxDukjCy1zRg6t4Fq_USVld0eW1pNGtoZ2prQWRCRUg3aTZZTzRUUE1wc1M2VkpGZDhTZzY3OHhwZ3BGTEQ4am9tOTJLMlUtZUduS2lCMjhpZS1HQU1laGRReUpoQ3VwdWdYS3FBIIEC; bili_jct=f1753715b455ce2db99ec05354cf2c00; fingerprint=262de2a503b05140a20bda05841f9755; buvid_fp=262de2a503b05140a20bda05841f9755; PVID=2; browser_resolution=2040-1026; bp_t_offset_5493983=978040246019031040; b_lsid=62D18E35_19203235E8B; sid=86fq5dr0",
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"Referer":"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=3"
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}
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def has_duplicates(lst): #判断列表中是否有重复元素
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return len(lst) != len(set(lst))
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def get_videos_cid(max_videos=300): #获取视频cid
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bv_list = []
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c_list = []
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i = 1
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while len(bv_list) < max_videos:
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url = f"https://search.bilibili.com/all?vt=45910958&keyword=2024%E5%B7%B4%E9%BB%8E%E5%A5%A5%E8%BF%90%E4%BC%9A&from_source=webtop_search&spm_id_from=333.788&search_source=3&page={i}"
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#为了防止被拦截，打个瞌睡
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time.sleep(2)
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resp = requests.get(url, headers=headers)
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resp.encoding = "utf-8"
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#错误判断
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if resp.status_code != 200:
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print(f"第{i}页视频请求失败，状态码: {resp.status_code}")
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else:
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i += 1
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bv_id_re = r'BV\w+'
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single_page_bv_ids = re.findall(bv_id_re, resp.text)
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single_page_bv_ids = list(set(single_page_bv_ids))
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#提取每页视频的BV号
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for bv_ids in single_page_bv_ids:
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if len(bv_list) >= max_videos:
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break
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bv_list.append(bv_ids)
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bv_list = list(set(bv_list))
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for bv_ids in bv_list:
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resp1 = requests.get(f"https://api.bilibili.com/x/player/pagelist?bvid={bv_ids}",headers=headers)
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resp1.encoding = "utf-8"
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if resp1.status_code == 200:
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c_id_re = r'"cid"\s*:\s*(\d+)'
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single_page_c_ids = re.findall(c_id_re, resp1.text)
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single_page_c_ids = list(set(single_page_c_ids))
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#提取每个BV号对应的cid（由于某些视频有分p，导致有多个cid，所以这里需要遍历）
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for c_ids in single_page_c_ids:
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if len(c_list) >= max_videos:
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break
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c_list.append(c_ids)
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c_list = list(set(c_list))
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print(f"最终cid列表: {c_list}")
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print(f"最终cid数量: {len(c_list)}")
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if has_duplicates(c_list):
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print("列表中有重复cid！")
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else:
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print("列表中没有重复cid！")
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return (c_list)
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def get_danmu(c_list): #通过cid获取视频弹幕
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danmu_list = []
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for c_ids in c_list:
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url = f"https://comment.bilibili.com/{c_ids}.xml"
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resp = requests.get(url, headers=headers)
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resp.encoding = "utf-8"
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#错误判断
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if resp.status_code != 200:
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print(f"cid为{c_ids}的视频获取弹幕失败，状态码: {resp.status_code}")
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else:
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danmu_re = r'<d[^>]*>(.*?)</d>'
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single_video_danmus = re.findall(danmu_re, resp.text)
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single_video_danmus = list(single_video_danmus)
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danmu_list.extend(single_video_danmus)
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print(f"cid为{c_ids}的视频获取弹幕成功！")
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return danmu_list
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c_list = get_videos_cid()
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danmu_list = get_danmu(c_list)
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#写入文件
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with open('danmu.txt', 'w', encoding="utf-8") as f:
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for dm in danmu_list:
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f.write(str(dm) + "\n")
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