不知名网站编程记录(四)
var a = 0;
var b = 0;
do
{c.fillStyle = rgb(128+a,0,128-a);c.fillRect(b,b,200-2*b,200-2*b);a = a + 32;b = b + 20;
}while(b<=80);
var a = 0;
var b = 100;
do
{c.fillStyle = rgb(255-a,0,0);c.fillRect(0,0,b,b);a = a + 63;b = b - 15;
}while(b>=40);