string(242) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=2021%E5%B9%B4%E4%BA%8C%E5%BB%BA%E6%B3%95%E8%A7%84%E6%80%8E%E4%B9%88%E6%A0%B7 => Failed to connect to 14.116.215.7 port 38230: Connection refused"
2021年二建法规怎么样
