GetHostNameIP

网络延迟测试工具。测试出网络速度带宽，大小( Network latency test)

通过客户端与服务器端文件对比，实现自动升级功能。(Through the client and server-side document comparison, automatic update feature.)

VC++ 编写简单文件扫描器 编写递归函数 查找文件 用的(recursive function)

UDP协议测试工具，可根据设定绑定UDP绑定IPD端口，进行相关的UDP吸引收发数据测试。(UDP protocol test tools, according to the set bound to the UDP binding IPD port, the UDP attract send and receive data test.)

串口转以太网通信的例子,有需要的可以参考参考,vc6写的.(Examples of serial to Ethernet communications, we need to refer to reference, vc6 written.)

说明：  Socket是建立网络连接时使用的。在连接成功时，应用程序两端都会产生一个Socket实例，操作这个实例，完成所需的会话。(Socket is used when a network connection. The connection is successful, the application will have a Socket instance ends, the operation of this example, the completion of the required sessions.)

用API函数写的winsock控件源代码.(API function to use the winsock control to write the source code.)

说明：  ARP协议发现局域网内的活动主机，vc++语言编写，用有界面，美观实用(ARP protocol found in the activities of the LAN hosts, vc++ language, with a interface, beautiful and practical)

务器端基于select I/O模型。为防止程序界面阻塞，有一个子线程用于不断接收socket并select其中的处理。客户端只有一个线程函数，不过其利用率很高，可用于远程目录交换，请求文件大小，创建若干线程来下载文件。文件传输有上传和下载,还有对等传输，这个项目中，传输文件具体指下载。 (side is based on the Treasury select I/O model. To prevent the program interface obstruction, a son threaded socket for receiving continuous and select which of treatment. Only one client thread function, but its high efficiency, long-distance directory can be used to exchange documents requested size, creating a number of threads to download files. Upload a file transfer and downloading, and the transmission of the project, specifically referring to transfer files downloaded.)

qt 开发的聊天源代码，使用 qtcpsocket 开发，容易看懂( qt source for tcp client)