光线追迹模拟程序，图示了光线在变折射率中的轨迹追踪

一个C++的中序遍历程序，输入一组数据后能中序遍历并升序输出。-one C and the preorder procedures, a data input after which preorder and ascending output.

一个类似泡泡堂一样的战车游戏源代码，很值得借鉴和学习哦，多谢支持-Like a similar BNB chariot game source code, it is worth learning and learning Oh, Thank you for your support

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使用反冥法算特征值和特征向量的算法。-use of anti-counting method offerings eigenvalues and eigenvectors of the algorithm.

kd树类的实现。内部提供了三种搜索方法。-kd tree class implementation。

这是一个VC++的程序员实用大全精华版，希望大家能用用，互相交流。-This is a VC++ Utility Daquan programmers best version, I hope everyone can use to exchange.

在程序中如何更改缺省打印机，在vb下如何做到？-In the procedure how to change the default printer in vb how to do this?

PHP+Ajax网站开发典型实例，一个简单易懂的例子-PHP+ Ajax web development typical example of a simple example to understand

这是一个不错的3D建模软件，在编辑框里可以类似像maya一样随意拖动模型，可以加纹理、雾化效果等等，当然还能保存数据，可以供为 3D游戏开发美工作模型设计工具！强烈推荐！-This is a good 3D modeling software. Message editorial maya be the same as similar random drive models can be increased texture, atomizing effect, and so on. Of course can preserve data, for the development of 3D games for the U.S. working model design tool! Strongly recommended!

最优查找二叉树和红黑树算法，可调整数据输入规模，打印树结构和总权值-Find the optimal binary tree and red-black tree algorithm, adjust the scale of data entry, printing tree structure and the total weight