SOURCE

leta=0;
function setup(){
creatCanvas(120,120);
background(255)
}
function draw(){
background(255,10);
a+=0.3;
noFill();
push();
strock(0);
translate(250,250);
rotate(a);
translate(-248,-248);
rect(0,0,450,450);

pop();
push();
stroke(0,60);
translate(250,250);
scale(random(7));
ellipse(0,0,60,60);
pop();
}

console 命令行工具 X clear

                    
>
console