教你用Python画一棵圣诞树

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重磅干货，第一时间送达

如何用Python画一个圣诞树呢？

最简单的方法：

height = 5


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

效果：

哈哈哈哈，总有一种骗了大家的感觉。

其实本文是想介绍Turtle库来画圣诞树。

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 = 0
for i in range(1, 13):
    y = 30 * i
    for j in range(i - k):
        x = 30 * j
        square.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 * i
    for j in range(2):
        x = 30 * j
        square.goto(x, -y + 280)
        square.stamp()
        square.goto(-x, -y + 280)
        square.stamp()

效果：

方法二：

import turtle




# 定义圣诞树的绿叶函数
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
""" 设置绘图速度
'fastest' :  0
'fast'    :  10
'normal'  :  6
'slow'    :  3
'slowest' :  1
"""
turtle.speed('fastest') # 设置速度


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)


# 执行函数
tree(15, n)
turtle.backward(n / 5)

效果：

PS：如果觉得我的分享不错，欢迎大家随手点赞。