03 processing 教孩子编程画方形

size(600,400);

background(255);

fill(0,0,255,100);

rect(10,10,285,185);

rect(305,10,285,185);

size(600,400);

background(255);

fill(0,0,255,100);

stroke(255);

strokeWeight(20);

rect(0,0,600,400);

strokeWeight(10);

rect(50,50,500,300);

strokeWeight(5);

rect(100,100,400,200);

strokeWeight(3);

rect(150,150,300,100);