string(259) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E9%99%88%E5%BA%B7%E8%82%83%E5%85%AC%E5%96%84%E5%B0%84%2C%E5%85%AC%E7%9A%84%E6%84%8F%E6%80%9D => Failed to connect to 61.171.74.35 port 38027: Connection refused"
陈康肃公善射,公的意思
