UDP异步编程

C#调用SMTP发送文本内容，详见示例图

自己写的一个http 客户端源代码，供大家学习参考。(http client source code for all to learn)

MFC界面的PING程序 输入主机地址或者IP地址 发送五次ICMP请求(PING procedure MFC interface type the host address or IP address to send five ICMP request)

群发消息，给好友发消息，登陆、添加好友等功能已实现，查看好友资料

Network Development Kit is a set of simple classes for a client-server architecture. Network Development Kit is a set of simple classes for a client-server architecture.

SOCKET网络编程实例，讲解细致，适合C/C++开发人员学习(SOCKET network programming, detailed explanations, suitable for C/C++ developers to learn)

利用vc++实现modbus tcp通信(Using vc++ to implement Modbus TCP communication)

一个有用的网络聊天小程序，含有全部源代码，经过调试(a useful Internet chat small program containing all the source code, after debugging)

ASP.NET车站售票系统的设计与实现(源码+数据库+毕业论文)

远程监控示例，含服务器端、客户端示例代码，有相关需要的可以参考下(Remote monitoring example, including server side, client sample code, there are related needs can be referred to.)