string(302) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%B8%BA%E4%BB%80%E4%B9%88%E4%B8%8A%E4%BC%A0b%E7%AB%99%E7%9A%84%E8%A7%86%E9%A2%91%E4%BC%9A%E8%A2%AB%E5%8E%8B%E7%BC%A9%E7%94%BB%E8%B4%A8 => Failed to connect to 14.116.215.7 port 38230: Connection refused"
为什么上传b站的视频会被压缩画质
