string(251) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%9C%89%E4%BB%80%E4%B9%88%E5%8A%9E%E6%B3%95%E8%83%BD%E8%AE%A9wifi%E5%8F%98%E6%85%A2 => Failed to connect to 14.116.215.7 port 38225: Connection refused"
有什么办法能让wifi变慢
