string(310) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E8%84%9A%E6%89%8B%E6%9E%B6%E5%AE%89%E5%85%A8%E4%B8%93%E9%A1%B9%E6%96%BD%E5%B7%A5%E6%96%B9%E6%A1%88%E7%9A%84%E5%BA%94%E6%80%A5%E9%A2%84%E6%A1%88 => Failed to connect to 14.18.117.71 port 38164: Connection refused"
脚手架安全专项施工方案的应急预案
