import turtle ​ ​ # 定義聖誕樹的綠葉函式 def tree(d, s): if d <= 0: return turtle.forward(s) tree(d - 1, s * .8) turtle.right(120) tree(d - 3, s * .5) turtle.right(120) tree(d - 3, s * .5) turtle.right(120) turtle.backward(s) ​ ​ n = 100 """ 設定繪圖速度 'fastest' : 0 'fast' : 10 'normal' : 6 'slow' : 3 'slowest' : 1 """ turtle.speed('fastest') # 設定速度 ​ turtle.left(90) turtle.forward(3 * n) turtle.color("orange", "yellow") turtle.left(126) ​ ​ # turtle.begin_fill() for i in range(5): turtle.forward(n / 5) turtle.right(144) turtle.forward(n / 5) turtle.left(72) turtle.end_fill() turtle.right(126) turtle.color("dark green") turtle.backward(n * 4.8) ​ # 執行函式 tree(15, n) turtle.backward(n / 5) 聖誕快樂寶