pdgtzsh

一个输入日期时自动判断合法性、补全格式的模块调用示例，有详细注释。(Automatically when an input to determine the legitimacy of the date, call up the whole format of the module example, there are detailed notes.)

用于求三组数，每组数的各个位都不相同。第二组数为第一组的2倍，第3组数为第一组的3倍(Is used to find the number of three, the number of the bits in each group are different. The second number of groups for the first group of two times the number of the third group of three times the first group)

pb开发的计算器，已经经过调试，可以满足基本的计算器要求，有需要的可以下载( pb development of the calculator, after debugging, to meet the basic requirements of the calculator, there is a need to download)

说明：  一个关于A Logging ListBox Control的实用源代码，非常好！(A Logging ListBox Control on a practical source code, very good!)

DSmT证据推理的组合公式计算函数，小波包分析提取振动信号中的特征频率，多元数据分析的主分量分析投影。( Combination formula DSmT evidence reasoning calculation function, Wavelet packet analysis to extract vibration signal characteristic frequency, Principal component analysis of multivariate data analysis projection.)

输入一个矩阵，可以求得该矩阵的逆矩阵，内附解释说明(Enter a matrix, you can obtain the inverse matrix, containing an explanation)

字母流星雨，可以形成26个字母组成的流星雨，可以闪烁，还可以使组成地面的字母消失(meteor shower)

A simple vector operation class and header

商人过河程序，找了好久才找到的程序......(shangrenguohe)

说明：  水晶报表 导出excel格式 包含网格线(Crystal report export excel format containing grid)