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%E7%AC%94%E8%AE%B0%E6%80%8E%E4%B9%88%E8%AE%B0 => Failed to connect to 101.89.117.144 port 38022: Connection refused"
二建笔记怎么记
