string(253) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E8%8B%B9%E6%9E%9C%E6%89%8B%E6%9C%BA%E6%80%8E%E4%B9%88%E4%BF%AE%E6%94%B9dns%E4%B8%BA114 => Failed to connect to 61.171.74.35 port 38041: Connection refused"
苹果手机怎么修改dns为114
