使用C#语言制作一个动画背景窗体，由一些规则的图形组成的动画背景窗体效果，几何图形的背景窗体，C#源码下载与大家分享。-Using the C# language to create an animated background form, the effect of by some of the rules of graphic animation background form, the geometry of the background form, the C# source code