string(259) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=ips%E5%B1%8F%E5%92%8C%E8%A7%86%E7%BD%91%E8%86%9C%E5%B1%8F%E5%B9%95%E7%9A%84%E5%8C%BA%E5%88%AB => Failed to connect to 14.116.215.7 port 38230: Connection refused"
ips屏和视网膜屏幕的区别
