作業七: 應用 Mouse-1-2-3 配合Time 4 --> 創作

size 400 400
paper 100
fast

command rect x y w h c

{
pen 20 30
line (x-w/3) (y-h/3) (x+w/3) (y-h/3)
line (x+w/2) (y-h/2) (x+w/2) (y+h/2)
line (x+w/2) (y+h/2) (x+w/2) (y+h/2)
line (x-w/2) (y+h/2) (x-w/2) (y-h/2)
}


forever
{
rect 30 20
}