string(274) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E8%AF%B7%E7%A4%BA%E4%B8%8E%E6%8A%A5%E5%91%8A%E4%B8%A4%E7%A7%8D%E6%96%87%E4%BD%93%E7%9A%84%E5%8C%BA%E5%88%AB => Failed to connect to 14.18.117.71 port 38069: Connection refused"
请示与报告两种文体的区别
