创建原始套接字，构造ICMP协议ECHO数据头，发送数据sendto 接收数据recvfrom，分析返回IP数据头及ICMP数据头 程序代码极其简单，适合初学网...

用 Winsock 实现聊天的程序 用 Winsock 实现聊天的程序-Winsock chatting with the procedures used Winsock chatting with the procedures Winsock chatting with the procedures Winsock chatting procedures

这段代码是用VB.NET版2012

客户端程序。该程序首先与相应服务器连接。然后接收用户从标准输入（键盘）输入的字符串，再将字符串发送给服务器，接收服务器发回的信息并显示。之后，继续等待用户输入直至用户输入Ctrl-D。当收到用户输入Ctrl-D后，客户关闭连接并退出。-client. The procedure first with the corresponding server connections. Users then receive from the standard input (keyboard) and input string, and then a string sent to the server, server to receive the information and display. After continue to wait until the user input of user input Ctrl-D. When users type Ctrl-D, customers close the connection and exit.

window socket网络编程的重叠IO模型的例子-window socket network programming overlap IO model examples

ext-2.1(网络系统),2.1版本，可以在web上摸拟一个桌面系统，使用简单，是一个简单的windows系统，不需要配置服务器。-ext-2.1 (Network Systems), Version 2.1, you can web on a desktop system simulation, using simple, is a simple windows system with no need to configure the server.

Following the development of network and communication technology, traditional telecommunication network meets with great challenges currently. In order to overcome the disadvantages of traditional telecom network, next generation network was put forward in recent years, which bases on IP packet network and soft-switch technology is used. The same problem is also existed in power communication system, so how to build next generation communication system become more and more important.

这是一个ftp的程序，很不错的-This a ftp procedures, very good! !

模拟邮件客户端代码。类似于Foxmail，可以从Mail网站收邮件。-Mail client simulation code. Similar Foxmail, can incoming mail from the Mail website.

聊天程序的源码，对学习socket编程很有帮助。-Chat program source code, useful for learning socket programming.

vc++做的代理服务器 希望对大家有帮助-vc do hope that the proxy server to be helpful