string(242) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%AE%B6%E9%87%8Cwifi%E7%BD%91%E7%BB%9C%E8%B6%8A%E6%9D%A5%E8%B6%8A%E6%85%A2 => Failed to connect to 14.18.117.71 port 38164: Connection refused"
家里wifi网络越来越慢
