种奇特的视觉效果制作起来相当简单，只需将屏幕分成许多行，每一行显示不同的颜色就可以了。渐变图形可以有许多种形式，有圆形渐变、矩形渐变、对角渐变等多种显示效果。要显示渐变，需使用到RGB 宏，每次使颜色值的各颜色分量稍有变化-Species peculiar to the production of visual effects is quite simple, just the screen is divided into a number of lines, each line shows a different color on it. Gradient graphics can take many forms, has a circular Gradient, Rectangular Gradient, Gradient, etc. diagonal display. To display the gradient, use the RGB macro, so that the color values of each color component of the slight changes