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.

网络通信,介绍基于TCP/IP协议下的UDP数据包的传递方法。-socket upd,in vb how to use udp protocal to transmate infomation by tcp/ip.this is a txt file write by dl.