string(305) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=5g%E5%AF%B9%E6%99%BA%E8%83%BD%E5%AE%B6%E5%B1%85%E8%A1%8C%E4%B8%9A%E7%9A%84%E5%BD%B1%E5%93%8D%E8%AE%BA%E6%96%87%E6%80%8E%E4%B9%88%E5%86%99 => Failed to connect to 125.88.227.171 port 38062: Connection refused"
5g对智能家居行业的影响论文怎么写
