计算crc校验码的程序，便于理解基本算法

本程序为客户端服务器通信的小程序，功能比较简单，仅供学习参考！ 客户端程序和服务器程序分别是一个工程，你需要先运行服务器程序，然后运行客户端程序，等连接建立以后，就可以发送数据了。 客户端可以同时打开若干个，并且都可以向服务器发送数据。

电子商务系统的设计-e-commerce system design

该实例完成一个服务器端和客户端简单的会话通信过程.要求主机上安装TCP/IP协议,并设定IP.服务器端和客户端使用同一台主机的不同端口号,服务器端使用的端口号为2000,客户端使用的端口号为3000. 服务器端程序先运行,首先初始化Winsock,然后创建套接字,在2000端口上进行绑定,接着在2000端口进行侦听,并进入等待状态.客户端后运行,同样首先初始化winsock,然后创建套接字,接着尝试和服务器端的连接.连接一旦建立,就可以在服务器端和客户端之间进行通信.客户端提示输入一个数字,比如输入50,那么客户端会从"data0"到"data49"发送50个字符串,输入0退出.-completed an example of the server and client simple oral communication process. Asked on the mainframe installed TCP/IP protocol and set the IP. Servers and clients using the same host of different ports, the use of the server port to 2000, clients use the port number as 3000. server operating procedures first, the first initialization Winsock, and then create socket, in 2000 ports on bonding, then the 2000 port for the interception, and entered the wait state. client after running the same protocols of the first initialization, and then create socket, and then try to server connections. connecting once established, can the server and client communications between. the client suggested the import

to get computer network IP

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实现DDNS，动态域名解析的源代码，可以根据需要裁剪和添加-Implementation DDNS, Dynamic DNS of the source code, you can cut and add as needed

CWebGrab is a simple class that allows you to quickly and easily download files from the net. The class is merely a light wrapper for the MFC internet classes, and as such supports any protocol that the MFC classes support.

网络通信程序，异步调用WEB SERVICE程序可以拿来学习 或者工作借鉴一下，VS 编程环境，已经测试通过，

资源描述简单的代码，基本实现连接客户端和服务器，带有多线程，运用套接字网络编程技术，代码简单，适合初接触网络编程的学习

开放源码分布式开发包-OSS development kits distributed