string(233) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=21%E5%B9%B4%E4%BA%8C%E5%BB%BA%E6%B3%95%E8%A7%84%E9%9A%BE%E5%90%97 => Failed to connect to 101.89.117.144 port 38005: Connection refused"
21年二建法规难吗
