string(249) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%BB%BA%E8%AE%BE%E6%B3%95%E8%A7%84%E7%9A%84%E8%B0%83%E6%9F%A5%E5%AF%B9%E8%B1%A1 => Failed to connect to 101.89.159.206 port 38187: Connection refused"
建设法规的调查对象
