python话圣诞树_使用Python画了一棵圣诞树的实例代码

分享给大家一篇文章，教你怎样用Python画了一棵圣诞树，快来学习。

如何用Python画一个圣诞树呢？

最简单：

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：