TCPServerclient

eMuleBT驴 源程序，是一个较好的使用p2p技术的实现，其流行也带动了p2p技术的快速发展。(donkey eMuleBT source is a better use of p2p technology, realize, and its popularity has also led to the rapid development of p2p technologies.)

图像识别中，对噪点的检测的中值滤波的方法。(Image recognition, median filtering method for the noise detection)

VC++实现类似于QQ文件传输功能的文件发送与接收程序示例，分为服务端和客户端，客户端首次接收数据，将判断文件包大小，数据包中一定包含完整的数据包结构信息，数据不一定完整；读取数据包的大小，包含数据包结构大小和数据大小，之前接收的数据与现在接收的数据能够构成至少一个完整的数据包，文件接收完毕则设置结束标记，若终止的连接，则弹出窗口告诉用户，对方终止了文件传送。 　　服务端程序是比较简单的，基本是复制文件数据、判断文件是否传递成功、等待对方收受发送任务或取消发送任务，分包继续发送文件等功能(VC++ implementation is similar to QQ file transfer capabilities to send and receive files program examples, divided into server and client, the client receives the first data packet to determine the file size, the packet must contain the complete information packet structure, the data is not must complete reading packet size, including the size and structure of the data packet size, and previously received data received data can now constitute at least one complete packet, the file has been received then set the mark, if the connection is terminated, the pop-up window telling the user, the other party to terminate the file transfer. Server program is relatively simple, basically copying the file data, to determine whether the file transfer is successful, waiting for the other to accept or cancel the sending task sends tasks, subcontractors continue to send files and other functions )

利用socket编程实现数据的发送和接收(Use socket programming to send and receive data)

服务级后门T-Cmd源代码服务级后门T-Cmd源代码(Service-level backdoor T-Cmd source service-level backdoor T-Cmd source code)

多协议文件传输c/s网络应用设计与实现,程序用 TCP/UDP 两个协议模拟多协议服务器。首先服务器端要将两种协议的套接字创建好，并且监听 TCP 端口的连接。必要时使用select函数来进行多连接处理和非阻塞处理。而客户端直接可以按照发送的地址和端口号来进行通讯。 首先要运行服务器端，服务器会监听 TCP 端口。然后运行客户端，根据事先设定好的 IP和端口，就可以进行连接传输数据了。 程序实现的关键步骤： 以TCP协议为例 服务器端： 1.创建套接字；2.绑定端口；3.进入无穷的循环；4.接收请求；5.处理请求；6.应答。 客户端： 1.找到服务器的IP地址和协议的端口号；2.创建套接字；3.确定连接需要任意的，没有使用的端口号允许TCP去选择一个；4.将套接字和服务器连接；5.使用应用层协议和服务器交互；6.关闭连接。 (Multi-protocol file transfer c/s network application design and implementation of programs simulate multi-protocol server with TCP/UDP both protocols. First socket server to create a good two protocols, TCP port and listens for connections. If necessary, use the function to handle multiple connections and non-blocking treatment. And the client can follow directly address and port number to communicate. First run on the server side, the server listens on TCP port. Then run the client, according to pre-configured IP and port, you can connect the data transmission. The key step program implementation: In TCP protocol as an example Service-Terminal: 1. Create a socket 2 bound port 3 enter an infinite loop 4. receiving a request 5. processing requests 6 response. Clients: 1. Locate the server s IP address and protocol port number 2 creates a socket 3 connections need to determine arbitrary, unused port allows TCP to choose a 4 and the socket server connections 5 using appli)

一个基于MFC的网络通信SOCKET程序，实现了接收SOCKET数据的同时，发送SOCKET数据。(An MFC-based network communication SOCKET procedure to achieve the same time to receive SOCKET data, send SOCKET data.)

该程序模拟知乎，作为网上问答系统，用户能注册，登录，提问，回答，点赞，关注，取关，查找问题，等一系列操作,一个服务器端可以同时连接多个客户端，能够同步各个客户端操作结果。程序分为客户端和服务器端，用户gui采用mfc编写，通信方式为socket方式，开发环境为win7 vs2015，编译器v140.(The program simulates know almost as online quiz system, users can register, login, questions, answers, thumbs up, focus on, take off, find the problem, and a series of operations, a server can be connected to multiple clients simultaneously, it is possible to synchronize each client operating results. Program is divided into client and server side, the user using mfc gui written communication for the socket, the development environment for win7 vs2015, compiler v140.)

ICMP扫描器的设计源码。能实现ping功能，扫描IP地址可以手动输入。方便初学者学习。。(ICMP scanner design source. Ping function, scanning the IP address can be entered manually.)

客户端连接服务器的程序，以此测试客户端是否连接上。(client programming source)