string(247) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%B6%88%E9%98%B2%E6%8E%A7%E5%88%B6%E5%AE%A4%E5%AE%9E%E6%93%8D%E8%AE%B2%E8%A7%A3 => Failed to connect to 14.18.117.71 port 38093: Connection refused"
消防控制室实操讲解
