说明：  实现了虚拟机与开发板之间的的tcp通信与udp通信，实现了客户端与服务器端的实时通信。 实现了两块开发板之间的串口通信，实现了一块开发板通过串口实时发送信息到另一块开发板。
(The TCP communication and UDP communication between virtual machine and development board are realized, and the real-time communication between client and server is realized. The serial communication between the two development boards is realized. One development board sends information to the other through the serial port in real time.)