string(249) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%80%8E%E4%B9%88%E6%89%BE%E5%88%B0%E7%94%B5%E8%84%91%E4%B8%BB%E6%9C%BA%E5%90%8D => Failed to connect to 101.89.159.206 port 38087: Connection refused"
怎么找到电脑主机名
