如何用Python畫一個聖誕樹呢？

最簡單：

height = 5stars = 1for i in range(height):print((' ' * (height - i)) + ('*' * stars))stars += 2print((' ' * height) + '|')

效果：

哈哈哈哈，總有一種騙了大家的感覺。

其實本文是想介紹Turtle庫來畫聖誕樹。

import turtle​screen = turtle.Screen()screen.setup(375, 700)​circle = turtle.Turtle()circle.shape('circle')circle.color('red')circle.speed('fastest')circle.up()​square = turtle.Turtle()square.shape('square')square.color('green')square.speed('fastest')square.up()​circle.goto(0, 280)circle.stamp()​k = 0for i in range(1, 13):y = 30 * ifor j in range(i - k):x = 30 * jsquare.goto(x, -y + 280)square.stamp()square.goto(-x, -y + 280)square.stamp()​if i % 4 == 0:x = 30 * (j + 1)circle.color('red')circle.goto(-x, -y + 280)circle.stamp()circle.goto(x, -y + 280)circle.stamp()k += 3​if i % 4 == 3:x = 30 * (j + 1)circle.color('yellow')circle.goto(-x, -y + 280)circle.stamp()circle.goto(x, -y + 280)circle.stamp()​square.color('brown')for i in range(13, 17):y = 30 * ifor j in range(2):x = 30 * jsquare.goto(x, -y + 280)square.stamp()square.goto(-x, -y + 280)square.stamp()

效果：

方法二：

import turtle​​# 定義聖誕樹的綠葉函式def tree(d, s):if d <= 0:returnturtle.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)

效果：