string(274) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E8%AF%BA%E8%B4%9D%E5%B0%94%E5%92%8C%E5%B9%B3%E5%A5%96%E6%9C%89%E5%A4%9A%E5%B0%91%E4%BA%BA%E5%8F%82%E5%8A%A0 => Failed to connect to 14.18.117.71 port 38164: Connection refused"
诺贝尔和平奖有多少人参加
