string(256) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E8%81%94%E6%83%B3%E7%9A%84%E7%AC%94%E8%AE%B0%E6%9C%AC%E7%94%B5%E8%84%91%E5%9E%8B%E5%8F%B7 => Failed to connect to 14.18.117.71 port 38164: Connection refused"
联想的笔记本电脑型号
