网络课程的通信代码，有服务器端和客户端，可以实现客户与服务器的通信与文件传输-Online course communication code, server and client, client and server communications and file transfer can be achieved

计算机网络课程设计 编程实现基于UDP的PING (Java-Computer network programming curriculum design based on UDP PING (Java

python语言的入门教程，适用于python初学者，属于计算机网络课程的必备资料。-python language introductory tutorial for beginners python, essential data pertaining to computer network curriculum.