一个很好的关于网络技术与编程的PPT，是初学者很好的选择

1 简介

2 传输层 TCP 和UDP

3 套接口编程基础

4 基本TCP套接口编程

5 TCP 客户-服务器例子

6 I/O复用：select和poll函数-A good programming on network technology and PPT, are a good choice for beginners 1 Introduction 2 transport layer TCP and UDP 3 4 socket programming based on the basic TCP socket programming 5 TCP client- server example 6 I/O multiplexing : select and poll Functions