圓型方陣

size(800,600);
noStroke();
for (int y = 0; y < 600; y += 100)
{
for (int x = 0; x < 800; x += 100)
{
for (int z = 100; z>=0 ; z-=25)
{
fill((x+y+z*2) * 0.3,(x+y+(z*8)) * 0.2,(x+y+(z*2)) * 0.2);ellipse(x+50, y+50, z, z);
}
}
}