该程序演示了将红、绿、蓝三种基本颜色合成一种颜色的过程。使用者通过调节滚动条改变各个基本颜色在合成颜色中所占的比例。-The program demonstrates the red, green, blue synthetic color of the three basic colors. The user by adjusting the scroll bar to change the proportion of each basic color in the synthesis of