string(265) "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%E9%99%A4%E4%BA%86%E6%B2%88%E9%98%B3%E5%A4%A7%E8%BF%9E%E5%A4%AA%E7%A9%B7%E4%BA%86 => Failed to connect to 14.18.117.71 port 38220: Connection refused"
辽宁除了沈阳大连太穷了
