还可以组合多种颜色的变化，以获得颜色循环的效果。
It's also possible to combine multiple color changes to achieve a color cycle effect.
粒子动画器随着时间移动你的粒子，使用它们应用风、拖放和颜色循环到你的粒子系统（什么意思啊）。
Particle Animators move your particles over time, you use them to apply wind, drag & color cycling to your particle systems.
在测试程序中，我们增加了一个鼠标滚轮侦听器，它让背景色按照某一方向在颜色数组中循环，如清单4所示。
In the test program, we'll attach a wheel listener that has the background color loop through the array of colors based upon the direction, as shown in Listing 4.
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