string(238) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%BB%8A%E5%B9%B4%E4%BA%8C%E5%BB%BA%E7%AE%A1%E7%90%86%E9%9A%BE%E5%90%97 => Failed to connect to 14.18.117.71 port 38220: Connection refused"
今年二建管理难吗
