多个基本的数电实验工程，代码及分析都有，是初学者的好材料...

发送消息的小程序 如同NET SEND 最适合局域网中 发送消息-messaging small NET SEND procedure as the most suitable for LAN messaging

用VC socket 实现聊天室的客户端-VC socket used to achieve Chat client

用microsoft virtual studio 中的VC实现普通的邮件发送，在这个基础上可以衍生出很多的邮件发送的例子，希望对大家有帮助。谢谢

在局域网网中，客户端通过向服务器端发送连接请求，可以同服务器端进行网络围棋。-in LAN network, the client to the server through this connection request, the same network server Go.

一个客户端一个服务器端 服务器端可以和多个客户端进行连接进行文件的传输,还可以进行对话-A client of a server-side and server-side can connect to multiple clients for document transmission, but also to engage in dialogue

压缩包中C语言编写的TCP_IP源代码，无解压密码，供网友共同参考-compression package prepared by the C language source code TCP_IP without extracting passwords, a common reference for netizens

WINSOCK服务器端示例程序说明 该程序是基于对话框编程的，是采用一对多的方式进行连接的。 整个程序主要由CServerDlg,CServerApp,CListenSocket,CClientSocket构成的。 （所有关于类的说明在代码中有） 下面简单介绍一下程序流程： 主程序调用CListenSocket类的对象来进行对Socket的监听，当收到请求时调用主程序的函数来处理相应的连接，把Socket放进队列中。 对于Socket的接收数据和断开连接是由消息来触发的，是通过调用基类CSocket中的虚函数重载来处理的。 注：详细的过程，在程序代码中均有注释！-Winsock server sample program note that the procedure was based on dialog programming, using one-to-many is the way to connect. The entire process by CServerDlg, CServerApp, CListenSocket, constitute the CClientSocket. (All categories on the note in code) The following outlines procedures have : main program called CListenSocket category to the target of the listening socket, when the call request is received when the main program functions to the corresponding connections, socket into the queue. Socket for the reception of data and disconnected from the news to trigger, by calling the base class CSocket the virtual function to handle the heavy load. Note : Details of the procedure code have Notes!

现实Ping功能的源代码-reality Ping function of source code

Windows下的ICMP封装-Clcmp class which can echo

很不错的聊天室程序，分服务端和客户端-A good program about chat room, it includes server and client