CHAP40

基于MFC的TCP/IP socket编程，一个客户端程序，适合初学者学习，开发平台vs2015(TCP/IP SOCKRT programing based on MFC,A client program ,very good for first learner the develop platform is vs2015)

利用socket技术，实现了局域网之间的通信，两个客户端之间可以相互聊天(Socket technology, communication between the LAN between the two clients can chat with each other. )

Project that describe how use Windows Socket

本程序可以用来监控本地网络，捕获一段时间内以本机为源地址或目的地址的IP数据包（不包括以广播形式发出的数据包），统计IP数据包的信息，列出本机与其他主机之间不同协议类型IP数据包的流量。(This procedure can be used to monitor the local network, capturing a period of time to this machine as the source or destination addresses of IP packets (including broadcast packets sent), statistics of IP packets, lists the machine with The flow of data packets IP between different protocol types in other hosts.)

:文章介绍了在局域网有关AVI文件视频流的实时操作中如何获取AVI视 频流，利用系统压缩管理器实现视频压缩，并实现视频图像的快速显示等问题。具体 讨论了在利用UDP协议进行数据传输时平滑突发数据流、恢复接收数据包的次序 等问题。(: This paper introduces the relevant AVI file in the local area video streaming real-time operation How to obtain the AVI video stream, using System Manager to achieve compression video compression, and to achieve rapid display video images and so on. Specifically discussed the use of UDP protocol for data transmission when the unexpected smooth data flow and restore order to receive packets and so on.)

从网页上下载，这样的话可以用其加工来设计升级程序(downloaded from the website, so processing can be used to design its promotion procedures)

说明：  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。(Client server based on select I/O model. Programming interfaces in order to prevent obstruction, there is a sub-thread for receiving socket and select which treatment. There is only one client thread function, but its utilization very high, can be used for remote directory exchange, request the file size, create a number of threads to download the file. File transfer are uploading and downloading, as well as peer-to-peer transmission, this project, the specific means to transfer files to download.)

VB利用winSocket写的IFTP网络数据传输(VB winSocket)

实现可靠的UDP封装传输类，可以进行多点传输，采用超时重发机制(Reliable transmission of UDP encapsulation type, can be multi-point transmission, the use of timeout retransmission mechanism)

TCP和UDP socket编程，向固定服务器发送学号姓名信息，用udp从服务器获得一个随机字符串(TCP and UDP socket programming, Student ID Name information sent to the fixed server udp from server to obtain a random string)