粗糙集

vb精华窗体篇，对于初学者很有帮助。学习中。(vb form the essence of articles, very helpful for beginners. Learning.)

this is sourcecode document of h.323

It contains a solar cell is simulated using simulation software is PScad. It is well simulated solar cell performance

局域网聊天工具客户端，基于sock写的，适于初学者-LAN client chat tool, based on the sock was made suitable for beginners

C++面向对象编程，很不错的教材，讲授面向对象的思想(C++ object-oriented programming, it is a good teaching materials, teaching object-oriented thinking)

Microsoft VC++7.0 Change 具体使用解压后即可得知-Microsoft VC 7.0 Change specific use to get unpacked

可以列出系统的所有进程，包括详细文件名，以及引用的所有动态库文件，比任务管理器显示的信息更适合观察非法进程情况。-System can list all processes, including detailed file name, as well as references to all the dynamic library file than Task Manager shows that the information is more suitable to observe the situation of the illegal process.

采用VB6.0编程的MD5加密算法。MD5就是采用单向加密的加密算法，对于MD5而言，有两个特性是很重要的，第一是任意两段明文数据，加密以后的密文不能是相同的；第二是任意一段明文数据，经过加密以后，其结果必须永远是不变的。前者的意思是不可能有任意两段明文加密以后得到相同的密文，后者的意思是如果我们加密特定的数据，得到的密文一定是相同的。(Using VB6.0 programming of MD5 encryption algorithm. MD5 is the use of one-way encryption algorithm, for MD5, there are two characteristics is very important, the first is any two plaintext data encrypted ciphertext, later not to be the same second is an arbitrary piece of plaintext encrypted data, then, the results must always be the same. The meaning of the former is unlikely to have any two plaintext after getting the same ciphertext, which means if we encrypt specific data, the encryption must be the same. )

ftp开发实例，如若作ftp开发，可以下载参考-ftp developed examples, if for ftp development, you can download reference

mifare one卡读写DEMO,含有库文件和算法。(mifare one card reader DEMO, contains the library files and algorithms.)