string(274) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%94%B0%E6%B1%89%E5%88%9B%E4%BD%9C%E7%9A%84%E4%BD%9C%E5%93%81%E6%9C%89%E4%BB%80%E4%B9%88%E7%89%B9%E7%82%B9 => Failed to connect to 14.18.117.71 port 38164: Connection refused"
田汉创作的作品有什么特点
