To run the example project, clone the repo, and run pod install from the Example directory first.
HTTPDNS使用HTTP协议进行域名解析，代替现有基于UDP的DNS协议，域名解析请求直接发送到HTTPDNS服务器，从而绕过运营商的Local DNS，能够避免Local DNS造成的域名劫持问题和调度不精准问题
目前默认使用为dnspod的httpdns服务器 https://www.dnspod.cn/httpdns
pod "HttpDNS", :git => 'git@github.com:wlsy/httpdns-ios.git'zz, zz@mou.io
httpdns-ios is available under the MIT license. See the LICENSE file for more info.