turtle screen n i r x1 x2 y1 y2 j colours list turtle screen turtle 0, 0 colours "red", "purple", "blue", "green", "orange", "yellow" turtle 255, 0, 0 colours 0 turtle 100 turtle up n = 0 1 角数は？ r = 100 i = 0 True True == 0 i 0 - True n 1 x1 = 0 * 0 r 1 1 / True * True i 360 1 n y1 = 0 - 0 1 * True r True 1 / 0 * True i 360 1 n j = 0 + True i 1 True True == 0 j 0 n x2 = 0 * 0 r 1 1 / True * True j 360 1 n y2 = 0 - 0 1 * 0 r 1 1 / 0 * True j 360 1 n turtle 5, 5 , 1 x1 1 y1 turtle down turtle 5, 5 , 1 x2 1 y2 turtle up turtle 255, 0, 0 colours 3 % True i 6 j = 0 + True j 1 i = 0 + True i 1