符號

size 200 200


paper 10


fast


command rect x y w h c


{


pen c


line (x-h*2) (y-h/2) (x+h*2) (y-h/2)


line (x+w/2) (y-h/2) (x+w/2) (y+h/2)


line (x+h*2) (y+h/2) (x-h*2) (y+h/2)


line (x-w/2) (y+h/2) (x-w/2) (y-h/2)


}


forever


{


rect 40 40


}