python 画一颗简单的圣诞树

# -*- ecoding: utf-8 -*-
# @ModuleName: test008
# @Function: 一颗圣诞树
# @Author: darling
# @Time: 2021-12-22 11:12

from turtle import *
import random
import time

n = 80.0

speed("fastest")
screensize(bg='seashell')
left(90)
forward(3 * n)
color("orange", "red")
begin_fill()
left(126)

for i in range(5):
    forward(n / 5)
    right(144)
    forward(n / 5)
    left(72)
end_fill()
right(126)

color("dark green")
backward(n * 4.8)


def tree(d, s):
    if d <= 0: return
    forward(s)
    tree(d - 1, s * .8)
    right(120)
    tree(d - 3, s * .5)
    right(120)
    tree(d - 3, s * .5)
    right(120)
    backward(s)


tree(15, n)
backward(n / 2)

for i in range(200):
    a = 200 - 400 * random.random()
    b = 10 - 20 * random.random()
    up()
    forward(b)
    left(90)
    forward(a)
    down()
    if random.randint(0, 1) == 0:
        color('tomato')
    else:
        color('wheat')
    circle(2)
    up()
    backward(a)
    right(90)
    backward(b)
time.sleep(60)

发现，等待下来的时间，有点长，想一想，是不是可以使用多线程进行循环？