string(233) "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%E6%98%AF5g%E6%99%BA%E8%83%BD%E5%AE%B6%E5%B1%85 => Failed to connect to 125.88.227.171 port 38062: Connection refused"
什么是5g智能家居
