编写一个程序，在屏幕上出现一个圆心沿正弦曲线轨迹移动的实心圆，而且，每隔四分之一周期，圆的填充色和圆的周边颜色都发生变化，同时，圆的半径在四分之一周期之内由正弦曲线幅值的0.2倍至0.6倍线性增长。 -Write a program that appears on the screen along a sinusoidal trajectory of the center moving solid round, and every quarter cycle, a circle filled