此纯属个人作品。比较简单、也比较简陋。适合初学者。 客户端、服务器都在本地。 启动顺序是先打开服务器。再打开客户端。-This is purely personal works. Relatively simple, and relatively simple. Suitable for beginners. Client server locally. The boot sequence is the first to open the server. Then open