string(250) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%8D%83%E5%85%86%E8%B7%AF%E7%94%B1%E5%99%A8wifi5%E5%92%8Cwifi6%E5%B7%AE%E5%88%AB => Failed to connect to 101.89.117.144 port 38005: Connection refused"
千兆路由器wifi5和wifi6差别
