说明：  智能卡的应用并不是简单的读写卡操作，而是一个综合性的工程项目。它不仅包括卡和读写模块的选择，还涉及到读写模块的控制、数据的传输、数据的处理和存储；既需要有硬件应用的知识、也还必须具有软件方面的能力。下面我们以一个完整的应用系统为例，详细地描述了各组成部分的设计要求、完成的功能及具体的实现方法。
(Smart card application is not simple to read and write card operations, but a comprehensive engineering projects. It includes not only read and write cards and modules to choose, but also to read and write control module, data transmission, data processing and storage both need to have hardware knowledge, but also must also have the software capabilities. Now we as a complete application system as an example, described in detail the various components of the design requirements, the completion of the function and specific method.)