国内某大型安防公司门禁通讯协议的源代码，想开发门禁的朋友可以借鉴可为你提供很好的思路，节省大量的开发时间，你甚至不用改任何代码直接用于你的系统中。-A large domestic security companies access the source code of communication protocols, to develop access friends can provide a good reference for your ideas, save a lot of deve