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DirectX 9.0 3D游戏开发编程基础源代码 初始化Direct3D,绘制流水线，光照，纹理映射，融合，网格，粒子系统，着色器(DirectX 9.0 3D Game Development Programming source code Initializing Direct3D, drawing line, light, texture mapping, integration, grid, particle systems, shaders)

加载动态链接库，使用里面的函数，来移动图片(Load the dynamic link library, inside a function, to move the picture)

大名鼎鼎的界面库，就不用我介绍了吧。这是当前最新的版本。安装后有全部源代码，序列号也在里面。(The well-known interface library, would not I introduce you. This is the latest version. After the installation has all the source code, the serial number is also inside.)

CSR蓝牙MP3播放USB DONGLE源码,支持蓝牙A2DP协议,实现无MP3播放功能()

调用API函数在VC++6.0的编译环境下，对串口进行写入操作，简单易懂，易实现，通过调试后取得较好的效果(using api functions in the vc++6.0 progress the serial communiction )

实验题目：windows操作系统作业多线程压力测试实验(MultiThread)

simple calculator for beginers

用C++实现了梯度下降求多元函数极值的算法,有可能会陷入局部最优解()

覆盖本地文件，删除原文件，复制、重命名再粘贴(Overwrite local files, delete original files, copy, rename and paste.)

说明：  本程序适用于Gps坐标系和北京54或西安坐标系的转换，也可以应用与Gps坐标系和Cgs2000坐标系的坐标转换。(the procedures applicable to the PON coordinates and Beijing or Xi'an 54 coordinate system conversion, and the application can also coordinates and PON Cgs2000 coordinates the coordinate transformation.)