# -*- coding: utf-8 -*-

# @Time    : 18-12-26 上午9:32

# @Author  : Felix Wang

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)