Protocol Buffers

Protocol buffers are a language-neutral, platform-neutral extensible mechanism for serializing structured data.

Protocol buffers 是一种语言无关、平台无关的可扩展机制，用于序列化结构化数据。

Ref：

    https://github.com/protocolbuffers/protobuf

    https://developers.google.com/protocol-buffers/

    通信协议之Protocol buffer(Java篇)