string(231) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%BA%8C%E5%BB%BA%E5%AE%A1%E6%A0%B8%E4%B8%A5%E4%B8%8D%E4%B8%A5 => Failed to connect to 101.89.117.144 port 38208: Connection refused"
二建审核严不严
