string(292) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%90%BA%E7%A8%8B%E6%94%B9%E7%AD%BE%E5%A4%B1%E8%B4%A5%E5%90%8E%E7%9A%84%E9%92%B1%E4%BB%80%E4%B9%88%E6%97%B6%E5%80%99%E9%80%80 => Failed to connect to 14.18.117.71 port 38093: Connection refused"
携程改签失败后的钱什么时候退
