string(267) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%A6%82%E4%BD%95%E6%8A%8A%E4%B8%BB%E9%A1%B5%E8%AE%BE%E7%BD%AE%E6%88%90%E7%A9%BA%E7%99%BD%E9%A1%B5 => Failed to connect to 125.88.227.171 port 38114: Connection refused"
如何把主页设置成空白页
