string(284) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%BB%80%E4%B9%88%E8%BD%AF%E4%BB%B6%E9%80%82%E5%90%88%E5%BD%95%E5%88%B6%E8%A7%86%E9%A2%91%E6%95%99%E7%A8%8B%E7%9A%84 => Failed to connect to 101.91.112.32 port 38221: Connection refused"
什么软件适合录制视频教程的
