string(231) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%B2%88%E9%98%B3%E5%92%8C%E5%A4%A7%E8%BF%9E%E6%AF%94%E8%BE%83 => Failed to connect to 125.88.227.171 port 38114: Connection refused"
沈阳和大连比较
