for迴圈

void setup()

{

size(800,600);

background(60,60,60);

noLoop();

}
void draw()

{
for(int j=0;j<80;j++)

{

float x,y,c1,c2,c3,c4;

x = random(0,800);

y = random(0,600);

c1 = random(0,255);

c2= random(0,255);

c3 = random(0,255);

c4 = random(0,255);

fill(c1,c2,c3,c4);

ellipse(x,y,40,40);

}

for(int i=0;i<220;i++)>

{

float x,y,lx,ly,c1,c2,c3,c4; // Random rand = new Random();

x = random(0,800);

y = random(0,600);

lx = random(0,100);

ly = random(0,100);

c1 = random(0,255);

c2= random(0,255);

c3 = random(0,255);

c4 = random(0,255);

fill(c1,c2,c3,c4);

rect(x,y,lx,ly); }
}