string(247) "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%95%B4%E8%8C%83%E5%9B%B4 => Failed to connect to 14.18.117.71 port 38093: Connection refused"
建设法规的调整范围
