微机实验21点游戏（双机通信版），server和client分别为服务器端和客户端，先运行client再运行server.
Microcomputer Experiment 21:00 Game (Two-machine communication edition), server and client are server-side and client-side, first run the client and then run the server. (2013-06-05, DOS, 57KB, 下载2次)