注：大会员账号的SESSDATA才可以下载大会员专属视频

  1. chrome浏览器打开bilibili 并登录

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  1. 网页右键点击检查

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  1. 点开下拉菜单依次选择application -> cookies -> www.bilibili.com

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  1. 右边选择SESSDATA，复制SESSDATA值

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