string(238) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%96%AB%E6%83%85%E5%90%8E%E6%9C%9F%E5%A4%8D%E5%B7%A5%E5%A4%8D%E4%BA%A7 => Failed to connect to 14.18.117.71 port 38069: Connection refused"
疫情后期复工复产
