string(256) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E8%BE%BD%E5%AE%81%E5%93%AA%E4%B8%AA%E5%9F%8E%E5%B8%82%E7%A6%BB%E5%A4%A7%E8%BF%9E%E8%BF%91 => Failed to connect to 14.18.117.71 port 38041: Connection refused"
辽宁哪个城市离大连近
