string(229) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E8%81%94%E6%83%B3b51bios%E8%AE%BE%E7%BD%AE%E5%9B%BE%E8%A7%A3 => Failed to connect to 101.89.117.144 port 38017: Connection refused"
联想b51bios设置图解
