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SMTP协议实现总集，也是本人收集的，有7个程序的源代码！非常好！用于课程设计的！(SMTP protocol collection, and I collected a seven program's source code! Very good! For course design!)

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.)

Windows网络与通信程序设计 源码 (Windows network and communications programming source code)

SPEI计算SPEI的R语言版与可执行版（含下载网址）.rar(SPEI calculated SPEI R-language version of the executable version (with download link). Rar)

端口扫描工具 C++语言编写 代码简洁有效快捷！(Port scanning tool C++ language code is simple and effective and efficient!)

基于SOCKET编程，模拟聊天窗口，可选择端口号等，两个窗口之间可以相互发送信息。(SOCKET-based programming, simulation of the chat window, two windows to send messages between each other.)

一个简单的Winpcap抓包示例程序，能显示多网卡信息，能分别数据链路层和网络层的报文信息(A simple Winpcap packet capture sample program can display a multi-card information, respectively, the data link layer and network layer packet information)

提供了各种拒绝服务攻击方式的算法，封装成了各种函数，调用很方便。(Offers a variety of denial of service attack algorithm, the package into various functions, call it convenient.)

利用哈希运算产生服务端和客户端的通信密钥( Produces the service end and the customer end correspondence key using the Hasche operation )

一个关于串口通信编程的小程序，使用visual c++编写。(Serial communication programming on small procedures, the use of visual c++ Prepared.)