comnunication

Visual C++ .NET 网络与通信高级编程范例配套代码(Visual C++. NET network and high-level programming paradigm supporting code)

端口扫描器。 本扫描器实现了：TCP Connect 扫描，TCP SYN扫描，TCP Fin扫描，TCP ACK扫描及UDP端口扫描,这些扫描能够实现扫描特定IP地址范围内端口和扫描某IP地址范围内全部主机特定端口两种模式，并且SYN扫描能够区分端口开放、端口关闭和被防火墙过滤三种状态。(Port scanner. The scanner realized: TCP Connect Scan, TCP SYN Scan, TCP Fin Scan, TCP ACK scan and UDP port scan, the scan can scan a specific IP address range of ports and scanning a range of IP addresses all host two specific ports mode, and can distinguish SYN scan open ports, port closed and the three states firewall filters.)

Network transmission

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.)

Visual C++案例开发集锦第六章\聊天室服务器端开发的程序源码,值得一看！(Visual C++ case development highlights Chapter Chat server-side development of the program source code, worth a visit!)

学习网络编程的初学者必看的.(Learning Network Programming Watchable the beginners.)

通达信自定义选股插件程序,嵌入通达信，输入某个参数，然后根据相关的股票行情数据计算，然后输出我需要的数据。(Letter custom stock access plug-ins, embedded access to the letter, enter a parameter, and then stocks in accordance with the relevant data, and then output the data I need.)

在局域网内抓取所需要的IP数据包，使用VC++6.0工程编写。(Grab the required IP packets in the LAN.)

获取计算机IP地址。可以试试看。源码用C++实现(C++)

核心实例 POP3上电子邮件的检查,POP3协议，网络编程(POP3 email check)