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%E7%BD%91%E9%80%9F%E5%BE%88%E6%85%A2%E6%80%8E%E4%B9%88%E5%8A%9E => Failed to connect to 61.171.74.35 port 38041: Connection refused"
家里wifi网速很慢怎么办
