string(258) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=5g%E6%99%BA%E8%83%BD%E5%AE%B6%E5%B1%85%E4%BD%93%E9%AA%8C%E5%8C%BA%E6%95%88%E6%9E%9C%E5%9B%BE => Failed to connect to 14.18.117.71 port 38220: Connection refused"
5g智能家居体验区效果图
