string(274) "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%94%B5%E8%84%91%E7%8B%AC%E6%98%BE%E5%A5%BD%E8%BF%98%E6%98%AF%E9%9B%86%E6%98%BE%E5%A5%BD => Failed to connect to 14.18.117.71 port 38220: Connection refused"
联想电脑独显好还是集显好
