本程序用于控制RGB三基色 LED ，使其按红，绿，蓝，紫，黄，青，白顺序渐变 每种颜色的渐变时间为9.3ms. -This procedure is used to control RGB three-color LED to red, green, blue, purple, yellow, green, white sequence gradient For each color of the gradient time of 9.3ms.