网络编程包含五个部分：网络文件传输实验，多线程通信程序设计，UDP通信程序设计，使用Winsock I／O模型，电子邮件通信程序设计等，使用vs2012实现基本的数据传输。(Network programming consists of five parts: network file transmission experiment, multi thread communication program design, UDP communication program design, Winsock I / O model, e-mail communication program design and so on, and use vs2012 to realize basic data transmission.)