string(251) "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%E5%BE%88%E6%85%A2%E4%BB%80%E4%B9%88%E5%8E%9F%E5%9B%A0%E5%91%A2 => Failed to connect to 14.18.117.71 port 38164: Connection refused"
家里wifi很慢什么原因呢
