代码显示了如何利用串口发送用户借助自定义的数据协议组织的数据；用另一个串口接收数据并进行了解析，根据数据解析结果控制“二极管”的开和关。初学串口编程的童鞋值得参考~,Code shows how to use the serial port to send a user-defined data protocol with the organization of the data with another serial port to receive data and the analytic