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%8F%98%E5%BE%97%E5%BE%88%E6%85%A2%E6%80%8E%E4%B9%88%E5%8A%9E => Failed to connect to 14.116.215.7 port 38230: Connection refused"
家里wifi变得很慢怎么办
