string(247) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%94%B9%E7%AD%BE%E7%81%AB%E8%BD%A6%E7%A5%A8%E6%94%B6%E8%B4%B9%E8%A7%84%E5%88%99 => Failed to connect to 61.171.74.35 port 38027: Connection refused"
改签火车票收费规则
