socket

实现通用的程序升级功能，可以检查是否有更新，下载更新(Achieve universal upgrade feature, you can check for updates, download updates)

学习网络安全的一本书籍。《黑客入侵（超级详细版）》(A learning network security books. " Hacking (super-detailed version)" )

vb局域网对讲机，实现两台机器之间的通信(vb LAN radio to achieve communication between two machines)

说明：  以网络通讯为基础，客户端输入指令，得到反馈，在客户端和服务器端显示opengl模型，并控制模型的运动(base on the communication of network,client type the key ,the sever respond at the same time client and the sever show the live result on the screen.)

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)

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.)

VC++源程序实现同步网络时间，基于C/S结构，启动服务端程序后，需要在客户端输入服务端的IP地址，然后点击“同步”按钮，如果顺利连接的话，则完成与服务器端的时间同步，注意，本程序并非是连接世界官方时间服务器，比如微软的时间同步服务器、NIST的服务器等，而是用本程序中的服务端来代替了。 (VC++ source code to synchronize network time, based on C/S structure, start the server program, you need the client enter the service side of the IP address, then click the " Sync" button, if successfully connected, then finished with the server time synchronization Note that this procedure is not an official time server connected world, the time synchronization server such as Microsoft, NIST' s servers, but with this program instead of the server.)

快递发送单查询通信，　利用了socket(Courier to send single query communication using a socket)

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)

这是一个测试UDP数据包的丢包率的程序，包含程序源码，已经验证成功(This is a test UDP packet loss rate of the program, including program source code, has been successfully verified)