string(294) "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%E4%B8%BA%E4%BB%80%E4%B9%88%E9%9C%80%E8%A6%81%E4%BB%98%E5%85%A8%E9%83%A8%E7%9A%84%E8%BD%A6%E7%A5%A8%E9%92%B1 => Failed to connect to 101.89.166.210 port 38089: Connection refused"
改签为什么需要付全部的车票钱
