这是一个字符显示的程序，可以选择背景和字符颜色和图片，并且字符经过了反走样处理。-This is a character display program, you can choose the background and character colors and images, and characters through an anti-aliasing processing.

其中包括画直线、反走样直线、画圆、画椭圆、画矩形、画多边形、矩形填充、多边形填充、3D变换、光照、贴图等。-Including painting line, anti-aliasing line, circle, ellipse, rectangle, polygon, rectangle, polygon filling, 3D transform, illumination, texture etc..