任何颜色的光都可以分解成红、绿、蓝三种基本颜色，只是三种基本颜色的光的亮度不同而已；反之，只要变换红、绿、蓝三种基本颜色的光的亮度，用其可以合成任意颜色的光。本文介绍两种用计算机来演示光的合成与分解的方法。１　借助显微镜或高倍放大镜启动计算机以后，在显微 Light of any color can be decomposed into three basic colors of red, green and blue, but the brightness of the light of the three basic colors is different; otherwise, as long as the brightness of light of three basic colors of red, green and blue is changed, Any color of light can be synthesized. This article describes two ways to use computer to demonstrate the synthesis and decomposition of light. 1 After starting the computer with a microscope or high power magnifier, the microscope