string(268) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E9%85%92%E5%BA%97%E6%9C%BA%E7%A5%A8%E9%A2%84%E8%AE%A2%E5%93%AA%E4%B8%AAapp%E5%A5%BD%E4%B8%80%E7%82%B9 => Failed to connect to 14.18.117.71 port 38220: Connection refused"
酒店机票预订哪个app好一点
