说明：  1.功能描述 (1) 能够实现利用红外线实现无线数据的收发； (2) 能够将发送的数据或接收的数据进行显示，或根据接收的命令执行相应的功能。 （程序内以给出了和详细的注释，很容易读懂）
(1. Functional Description (1) can be achieved using infra-red wireless data transceiver (2) be able to send data or receive data display, or receive an order in accordance with the implementation of the corresponding function. (Procedures are given and detailed in the notes, it is easy to read))