其中有一个工作空间，两个工程，一个是UDP server的代码，一个是UDP client的代码，可以实现发送和接收UDP报文。如果更改其中的IP地址和端口，还可以向其他设备发送UDP报文，或者从其他设备接收UDP报文。-It has a workspace, the two projects, a UDP server code, a UDP client code, you can send and receive UDP packets with it. If you change the IP address and port ，it can also send a UDP packet to other devices or receive UDP packets from other devices.