说明：  简单清晰具有启发性的实例。 Net1和Client1类实现了TCP的简单应用。 Udp和Udpwatch类实现了UDP的简单应用。 Chater是一个聊天小工具，综合运用了TCP,UDP,IO,GUI,Thread等技术。对初学者很有启发性。
(clear and simple instructive examples. Net1 and Client1 category achieved a simple TCP application. Udp Udpwatch category and achieve a simple UDP application. Chater is a small chat tools, the integrated use of the TCP, UDP, IO, GUI, Thread technology. For beginners very instructive.)