VC++实现TCP实现P2P通信、TCP穿越NAT的方法、TCP打洞，有详细的说明文档，对于想了解P2P软件工作原理的人很有启发作用。-VC++ Realize TCP realize P2P communications, TCP through the NAT method, TCP holes, have detailed documentation for the P2P software would like to know the working principle of the p