string(270) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%98%BE%E7%A4%BA%E5%99%A8ips%E6%9C%89%E4%BB%80%E4%B9%88%E5%8C%BA%E5%88%AB%E5%92%8C%E7%94%A8%E9%80%94 => Failed to connect to 101.89.143.195 port 38109: Connection refused"
显示器ips有什么区别和用途
