string(258) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%A1%88%E4%BE%8B%E8%B5%B5%E4%BA%AE%E5%B9%B3%E8%AE%B2%E5%BE%97%E6%80%8E%E4%B9%88%E6%A0%B7 => Failed to connect to 101.89.159.206 port 38087: Connection refused"
案例赵亮平讲得怎么样
