BarCode

该文件是一个PDF文档，介绍了C语言头文件使用中普通人都会犯的一些错误，并以实际的例子辅以说明，非常实用！(The file is a PDF document that describes the use of C language header files are ordinary people committed some errors, and supplemented with practical examples that, very useful!)

说明：  用 Visual Basic 演示如何建立关联文件(With Visual Basic demonstrates how to create associated files)

使用Windows API函数获取当前系统时间，并以当前系统时间为名称创建txt文档(Use the Windows API function to obtain the current system time and create the txt document with the name of the current system time)

汉王人脸通FaceID VB（非.NET） SDK开发包示例程序源代码，包含英文版本。(Hanvon FaceID SDK, EN demo VB (NOT .NET) source code included.)

说明：  C++编写的简单分数类（包含复制，约分，四则运算等）(Simple fraction classes written in C++ (including duplication, reduction, four operations, etc.))

windows下计算文件的MD5值，命令行：md5sum 文件1 文件2 ...(windows file MD5 for calculating the value of the command line: md5sum file 1 file 2 ...)

oofem在vs2010下的sln文件，文件路径和.h以及.c文件的添加已经做好(oofem under the vs2010 sln file, the file paths and. h and. c file is ready to add)

美国海军天文台天体测量例程库，C语言第三版(US Naval Observatory astrometry routine library, C language Third Edition)

zemax源码： This DLL models a standard ZEMAX surface type, either plane, sphere, or conic The surface also demonstrates a user-defined apodization filter The filter is defined as part of the real ray trace, case 5 The filter can be used at the stop to produce x-y Gaussian apodization similar to the Gaussian pupil apodization in ZEMAX but separate in x and y. The amplitude apodization is of the form EXP[-(Gx(x/R)^2 + Gy(y/R)^2)] The transmission is of the form EXP[-2(Gx(x/R)^2 + Gy(y/R)^2)] where x^2 + y^2 = r^2 R = semi-diameter The tranmitted intensity is maximum in the center. T is set to 0 if semi-diameter < 1e-10 to avoid division by zero. (ZEMAX source: This DLL models a standard ZEMAX surface type, either plane, sphere, or conic The surface also demonstrates a user-defined apodization filter The filter is defined as part of the real ray trace, case 5 The filter can be used at the stop to produce xy Gaussian apodization similar to the Gaussian pupil apodization in ZEMAX but separate in x and y. The amplitude apodization is of the form EXP [- (Gx (x/R) ^ 2+ Gy (y/R) ^ 2)] The transmission is of the form EXP [-2 (Gx (x/R) ^ 2+ Gy (y/R) ^ 2)] where x ^ 2+ y ^ 2 = r ^ 2 R = semi-diameter The tranmitted intensity is maximum in the center.T is set to 0 if semi-diameter <1e-10 to avoid division by zero.)

福彩双色球模拟测试。 支持五组随机选球；支持打印功能。(Fucai color ball simulation tests. It supports five groups of randomly selected balls support print function.)