string(227) "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%E5%92%8Cva%E5%8C%BA%E5%88%AB => Failed to connect to 101.89.143.195 port 38109: Connection refused"
显示器ips和va区别
