坦克大战的网络版，可以手动指定IP，端口，使用TCP和UDP通信。对学习Socket很有帮助。-Battle City online version, you can manually specify the IP, port, using TCP and UDP traffic. Socket helpful for learning.

TCP网络五子棋,在UDP协议下完成双人对战-TCP network backgammon, completed a double screen in the UDP protocol