string(252) "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%B1%8F%E5%92%8Cva%E5%B1%8F%E7%9A%84%E5%8C%BA%E5%88%AB => Failed to connect to 14.18.117.71 port 38069: Connection refused"
显示器ips屏和va屏的区别
