string(263) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%80%8E%E6%A0%B7%E4%B8%8B%E8%BD%BD12306%E5%AE%98%E6%96%B9%E8%B4%AD%E7%A5%A8%E8%BD%AF%E4%BB%B6 => Failed to connect to 101.89.159.206 port 38100: Connection refused"
怎样下载12306官方购票软件
