P2P例程代码，从理论论到实践，从基础到项目，循序渐进地讲解了P2P技术的基本知识体系，同时配合开发案例进行P2P应用实战开发-P2P routine code from theory theory to practice, from foundation to the project, step by step to explain the basics of P2P technology system, and with the development of practical case s