里面包含了完整的门禁系统，包含了门禁系统的原理图和程序，能够满足基本的门禁系统的设计要求。对于想了解这一方面知识的人来说，也是一份很好的资料。
It contains a complete access control system, including the schematic diagram and procedures of the access control system, which can meet the basic design requirements of the access control system. It is also a good resource for those who want to know this knowledge.
