教你怎样用Python画了一棵圣诞树,快来学习[Python基础]

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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:

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