string(255) "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%E8%A1%8C%E7%A8%8B%E8%AE%B0%E5%BD%95%E4%BF%9D%E5%AD%98%E5%A4%9A%E4%B9%85 => Failed to connect to 14.18.46.51 port 38044: Connection refused"
酒店行程记录保存多久
