string(247) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%8F%91%E7%A5%A8%E5%92%8C%E8%A1%8C%E7%A8%8B%E5%8D%95%E4%B8%80%E6%A0%B7%E5%90%97 => Failed to connect to 61.171.74.35 port 38027: Connection refused"
发票和行程单一样吗
