Server

说明：  本程序是window平台下，使用virtual C++编写文件下载程序，使用了Http协议(This program is a window platform, use the virtual C++ writing the file download process, using Http protocol)

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)" )

说明：  DNS解析系统，通过发送DNS协议包到DNS服务器来获取DNS(DNS analysis system, the agreement by sending a DNS packet to the DNS server to obtain the DNS)

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)

类似Windows的netstat程序的程序 (An app which is like to windowss netstat)

这个小程序比较实用，可以让你的电脑时间同步世界服务器提供的时间，这可是比较准确的时间哦！源代码在VC6.0下编译通过，程序不管是从学习角度还是使用角度都不错，点一下鼠标你的电脑时间就会自动更正至世界时间。右侧的列表内显示的是提供时间服务的服务器域名，当然你还可以收集更多的时间服务器地址，加入到列表中(This little program is more practical, you can synchronize your computer time world time server, this is the more accurate the time Oh! VC6.0 to compile the source code through the program regardless of the angle from the learning point of view or are good to use, point the mouse to your computer time is automatically corrected to the world time. The list on the right shows the domain name server to provide time service, of course, you can collect more time server address, adding to the list )

基于MFC框架应用SOCKET的聊天室客户端，在VS2015上完美运行(SOCKET chat room client based on MFC framework, running perfectly on VS2015)

实现 tcp的端口映射 不同于udp的实现方法(Realization of TCP port mapping from UDP realization method)

Network transmission

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.)