本代码是三维图形编程代码，用的C#和DirectX，实现三维模型文件X文件的加载，三维模型的渲染

本代码是三维图形编程代码，用的C#和DirectX，实现三维模型文件X文件的加载，三维模型的渲染-The code is three-dimensional graphical programming code, used by C# And DirectX, the realization of three-dimensional model of a document X the document loaded, three-dim