string(272) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=12306%E8%BF%90%E8%A1%8C%E5%9B%BE%E6%9C%80%E6%96%B0%E8%B0%83%E6%95%B4%E5%85%AC%E5%91%8A%E6%9F%A5%E8%AF%A2 => Failed to connect to 101.89.143.195 port 38175: Connection refused"
12306运行图最新调整公告查询
