结论是：
videoid = tt-videoid
video_json = f’https://i.snssdk.com/video/urls/1/toutiao/mp4/{videoid}’
分析步骤为：
目标就是这个文章链接下面的，视频 下载下来。
抓包分析
看到了 video 标签， 但是源码里面没有这个标签，发现了有个很有标识的东西： tt-videoid 。
直接说 结果： src=“https://i.snssdk.com/video/urls/1/toutiao/mp4/v0301fg10000csljvd7og65kf0m8ntq0?callback=tt__video__vdefy8”
直接请求 src 得到了，
看到这种 不要慌，解密一下。
好，结果就出来了
解析代码
videoid = tt-videoidvideo_json = f'https://i.snssdk.com/video/urls/1/toutiao/mp4/{videoid}'headers = {"accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7","accept-language": "zh-CN,zh;q=0.9","cache-control": "no-cache","pragma": "no-cache","priority": "u=0, i","sec-ch-ua": "\"Google Chrome\";v=\"129\", \"Not=A?Brand\";v=\"8\", \"Chromium\";v=\"129\"","sec-ch-ua-mobile": "?0","sec-ch-ua-platform": "\"Windows\"","sec-fetch-dest": "document","sec-fetch-mode": "navigate","sec-fetch-site": "none","sec-fetch-user": "?1","upgrade-insecure-requests": "1","user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36"}cookies = {"odin_tt": "a2d3ceea612f2780e30a937100bd7f046490e1444ea859921535a09461162ba4175263d58898dd877d347b78eb144dbd6cd7bb127969860c77836bbeca4e6fe5"}response = requests.get(video_json, headers=headers, cookies=cookies)json_data = json.loads(response.text)main_url = jsonpath(json_data, '$..video_3.main_url')[0] if jsonpath(json_data, '$..video_3.main_url') else Noneif main_url:decoded_bytes = base64.b64decode(main_url)video_url = decoded_bytes.decode('utf-8')
结束：
文章视频可以正常提取下载
