string(320) "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%A0%E5%88%B0b%E7%AB%99%E7%9A%84%E8%A7%86%E9%A2%91%E4%B8%8D%E6%98%AF%E5%85%A8%E5%B1%8F%E6%98%BE%E7%A4%BA%E7%9A%84 => Failed to connect to 14.18.117.71 port 38133: Connection refused"
为什么上传到b站的视频不是全屏显示的
