string(260) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E8%81%94%E6%83%B3b505%E4%B8%80%E4%BD%93%E6%9C%BA%E9%85%8D%E7%BD%AE%E6%80%8E%E4%B9%88%E6%A0%B7 => Failed to connect to 61.171.74.35 port 38041: Connection refused"
联想b505一体机配置怎么样
