about this DES（数据加密标准）的C + +代码

图像压缩问题要求确定象素序列{p1,p2,…,pn}的最优分段，使得依此分段所需的存储空间最少。每个分段的长度不超过256位。数字化图像是m×m的像素阵列。假定每个像素有一个0 ~ 2 5 5的灰度值。因此存储一个像素至多需8位。若每个像素存储都用最大位8位，则总的存储空间为8m^2 位。为了减少存储空间，我们将采用变长模式（ variable bit scheme），即不同像素用不同位数来存储。像素值为0和1时只需1位存储空间； 值2、3各需2位；值4，5，6和7各需3位；以此类推。-image compression defined pixel sequence (p1, p2, ..., pn) sub-optimal, sub accordingly makes the storage space required at least. The length of each section is not more than 256. The digital image is m m pixel arrays. Assume that each pixel is a 0-2 5 5 of the gray values. Therefore storage of up to a pixel 8. If each pixel with the largest storage capacity of 8-bit, the total storage space for 8m ^ 2. In order to reduce storage space, and we will use variable-length model (variable bit scheme), that is different with different pixel median storage. Pixel values of 0 and 1 and only a storage space; The value of 2,3 required two; Value 4,5,6 and 7 of the required three; Analogy.

The Windows Installer XML (WiX) is a toolset that builds Windows installation packages from XML source code. The toolset supports a command line environment that developers may integrate into their build processes to build MSI and MSM setup packages

比较个算法的时间-comparison algorithm-time

用户登陆后可以对数字进行一些有趣的处理，求最大公约数，最小公倍数，同构数，水仙花数和进行数制转换-Users can visit a number of interesting figure deal, and the common denominator, least common multiple, the number of isomorphism, a few daffodils and a few system conversion

implementation of Weine filter in matlab

《Begin Visual C++ 2008》的配书源代码。该书中文版还没有翻译过来。- Begin Visual C++ 2008 book source code distribution. Chinese version of the book has not yet translated.

可以很容易比较两个字符串的相似度，基于汉明码的方法，效率高。-Can easily compare two string similarity, based on the Hamming code method, and high efficiency.

Audio通过MIC和WAVx来录音和放音-Audio and WAVx through MIC to recording and playback

CButtonST类源代码-CButtonST source category

很好的程序-Very good procedures