本文以edge浏览器为例，Chrome浏览器原理类似。
步骤1：打开CCTV视频网页，点击右键，选择“检查”，在打开的页面中选择“网络”这一栏，然后重新刷新当前视频网页，在“网络”标签页中能抓到很多内容。
步骤2：在“网络”标签页中，点击“类型”排序，在“xhr”类型中，找到“getHttpVideoInfo.do?pid=”，在旁边再点“响应”，把里面的内容复制到文本编辑软件中，比如：
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13:26:04″,”cdn_info”:{“cdn_vip”:”vod.cntv.myhwcdn.cn”,”cdn_code”:”VOD-MP4-CDN-HW”,”cdn_name”:”华为云”},”video”:{“totalLength”:”1678.00″,”chapters”:[{“duration”:”300.00″,”image”:”https://p2.img.cctvpic.com/fmspic/2023/10/31/e4efe4e26a4d4871a3ac66338c47292a-1.jpg”,”url”:”https://vod.cntv.myhwcdn.cn/flash/mp4video63/TMS/2023/10/31/e4efe4e26a4d4871a3ac66338c47292a_h264418000nero_aac32-1.mp4″},{“duration”:”300.00″,”image”:”https://p2.img.cctvpic.com/fmspic/2023/10/31/e4efe4e26a4d4871a3ac66338c47292a-1.jpg”,”url”:”https://vod.cntv.myhwcdn.cn/flash/mp4video63/TMS/2023/10/31/e4efe4e26a4d4871a3ac66338c47292a_h264418000nero_aac32-2.mp4″},{“duration”:”300.00″,”image”:”https://p2.img.cctvpic.com/fmspic/2023/10/31/e4efe4e26a4d4871a3ac66338c47292a-1.jpg”,”url”:”https://vod.cntv.myhwcdn.cn/flash/mp4video63/TMS/2023/10/31/e4efe4e26a4d4871a3ac66338c47292a_h264418000nero_aac32-3.mp4″},{“duration”:”300.00″,”image”:”https://p2.img.cctvpic.com/fmspic/2023/10/31/e4efe4e26a4d4871a3ac66338c47292a-1.jpg”,”url”:”https://vod.cntv.myhwcdn.cn/flash/mp4video63/TMS/2023/10/31/e4efe4e26a4d4871a3ac66338c47292a_h264418000nero_aac32-4.mp4″},{“duration”:”300.00″,”image”:”https://p2.img.cctvpic.com/fmspic/2023/10/31/e4efe4e26a4d4871a3ac66338c47292a-1.jpg”,”url”:”https://vod.cntv.myhwcdn.cn/flash/mp4video63/TMS/2023/10/31/e4efe4e26a4d4871a3ac66338c47292a_h264418000nero_aac32-5.mp4″},{“duration”:”178.00″,”image”:”https://p2.img.cctvpic.com/fmspic/2023/10/31/e4efe4e26a4d4871a3ac66338c47292a-1.jpg”,”url”:”https://vod.cntv.myhwcdn.cn/flash/mp4video63/TMS/2023/10/31/e4efe4e26a4d4871a3ac66338c47292a_h264418000nero_aac32-6.mp4″}],”chapters2″:[{“duration”:”180.00″,”image”:”https://p2.img.cctvpic.com/fmspic/2023/10/31/e4efe4e26a4d4871a3ac66338c47292a-1.jpg”,”url”:”https://vod.cntv.myhwcdn.cn/flash/mp4video63/TMS/2023/10/31/e4efe4e26a4d4871a3ac66338c47292a_h264818000nero_aac32-1.mp4″},{“duration”:”180.00″,”image”:”https://p2.img.cctvpic.com/fmspic/2023/10/31/e4efe4e26a4d4871a3ac66338c47292a-1.jpg”,”url”:”https://vod.cntv.myhwcdn.cn/flash/mp4video63/TMS/2023/10/31/e4efe4e26a4d4871a3ac66338c47292a_h264818000nero_aac32-2.mp4″},{“duration”:”180.00″,”image”:”https://p2.img.cctvpic.com/fmspic/2023/10/31/e4efe4e26a4d4871a3ac66338c47292a-1.jpg”,”url”:”https://vod.cntv.myhwcdn.cn/flash/mp4video63/TMS/2023/10/31/e4efe4e26a4d4871a3ac66338c47292a_h264818000nero_aac32-3.mp4″},{“duration”:”180.00″,”image”:”https://p2.img.cctvpic.com/fmspic/2023/10/31/e4efe4e26a4d4871a3ac66338c47292a-1.jpg”,”url”:”https://vod.cntv.myhwcdn.cn/flash/mp4video63/TMS/2023/10/31/e4efe4e26a4d4871a3ac66338c47292a_h264818000nero_aac32-4.mp4″},{“duration”:”180.00″,”image”:”https://p2.img.cctvpic.com/fmspic/2023/10/31/e4efe4e26a4d4871a3ac66338c47292a-1.jpg”,”url”:”https://vod.cntv.myhwcdn.cn/flash/mp4video63/TMS/2023/10/31/e4efe4e26a4d4871a3ac66338c47292a_h264818000nero_aac32-5.mp4″},{“duration”:”180.00″,”image”:”https://p2.img.cctvpic.com/fmspic/2023/10/31/e4efe4e26a4d4871a3ac66338c47292a-1.jpg”,”url”:”https://vod.cntv.myhwcdn.cn/flash/mp4video63/TMS/2023/10/31/e4efe4e26a4d4871a3ac66338c47292a_h264818000nero_aac32-6.mp4″},{“duration”:”180.00″,”image”:”https://p2.img.cctvpic.com/fmspic/2023/10/31/e4efe4e26a4d4871a3ac66338c47292a-1.jpg”,”url”:”https://vod.cntv.myhwcdn.cn/flash/mp4video63/TMS/2023/10/31/e4efe4e26a4d4871a3ac66338c47292a_h264818000nero_aac32-7.mp4″},{“duration”:”180.00″,”image”:”https://p2.img.cctvpic.com/fmspic/2023/10/31/e4efe4e26a4d4871a3ac66338c47292a-1.jpg”,”url”:”https://vod.cntv.myhwcdn.cn/flash/mp4video63/TMS/2023/10/31/e4efe4e26a4d4871a3ac66338c47292a_h264818000nero_aac32-8.mp4″},{“duration”:”180.00″,”image”:”https://p2.img.cctvpic.com/fmspic/2023/10/31/e4efe4e26a4d4871a3ac66338c47292a-1.jpg”,”url”:”https://vod.cntv.myhwcdn.cn/flash/mp4video63/TMS/2023/10/31/e4efe4e26a4d4871a3ac66338c47292a_h264818000nero_aac32-9.mp4″},{“duration”:”58.00″,”image”:”https://p2.img.cctvpic.com/fmspic/2023/10/31/e4efe4e26a4d4871a3ac66338c47292a-1.jpg”,”url”:”https://vod.cntv.myhwcdn.cn/flash/mp4video63/TMS/2023/10/31/e4efe4e26a4d4871a3ac66338c47292a_h264818000nero_aac32-10.mp4″}],”chapters3″:[{“duration”:”120.00″,”image”:”https://p2.img.cctvpic.com/fmspic/2023/10/31/e4efe4e26a4d4871a3ac66338c47292a-1.jpg”,”url”:”https://vod.cntv.myhwcdn.cn/flash/mp4video63/TMS/2023/10/31/e4efe4e26a4d4871a3ac66338c47292a_h2641200000nero_aac16-1.mp4″},{“duration”:”120.00″,”image”:”https://p2.img.cctvpic.com/fmspic/2023/10/31/e4efe4e26a4d4871a3ac66338c47292a-1.jpg”,”url”:”https://vod.cntv.myhwcdn.cn/flash/mp4video63/TMS/2023/10/31/e4efe4e26a4d4871a3ac66338c47292a_h2641200000nero_aac16-2.mp4″},{“duration”:”120.00″,”image”:”https://p2.img.cctvpic.com/fmspic/2023/10/31/e4efe4e26a4d4871a3ac66338c47292a-1.jpg”,”url”:”https://vod.cntv.myhwcdn.cn/flash/mp4video63/TMS/2023/10/31/e4efe4e26a4d4871a3ac66338c47292a_h2641200000nero_aac16-3.mp4″},{“duration”:”120.00″,”image”:”https://p2.img.cctvpic.com/fmspic/2023/10/31/e4efe4e26a4d4871a3ac66338c47292a-1.jpg”,”url”:”https://vod.cntv.myhwcdn.cn/flash/mp4video63/TMS/2023/10/31/e4efe4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步骤3：在上面的内容中，搜索“hls_url”，后面的链接即是无加密不花屏的内容。把链接复制到“https://tools.thatwind.com/tool/m3u8downloader”，可以把视频下载到本地。