string(240) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%94%B5%E8%84%91%E5%88%9D%E5%AD%A6%E6%80%8E%E6%A0%B7%E5%85%A5%E9%97%A8 => Failed to connect to 101.89.159.206 port 38100: Connection refused"
电脑初学怎样入门
