string(252) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%A7%BB%E5%8A%A8dns%E4%B8%80%E8%88%AC%E8%AE%BE%E7%BD%AE%E6%88%90%E4%BB%80%E4%B9%88 => Failed to connect to 125.88.227.171 port 38114: Connection refused"
移动dns一般设置成什么
