string(247) "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%B8%82%E5%92%8C%E5%A4%A7%E8%BF%9E%E5%B8%82%E8%B0%81%E5%A4%A7 => Failed to connect to 14.18.117.71 port 38164: Connection refused"
沈阳市和大连市谁大
