string(265) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%B3%A8%E5%AE%89%E5%AE%89%E5%85%A8%E7%AE%A1%E7%90%86%E4%BA%BA%E5%91%98%E7%9A%84%E8%81%8C%E8%B4%A3 => Failed to connect to 14.18.117.71 port 38069: Connection refused"
注安安全管理人员的职责
