2024年4月15日发(作者：)

```python

import turtle

import random

# 设置画布

(800, 600)

r("skyblue")

# 创建画笔

pen = ()

(0)

(3)

# 定义颜色列表

colors = ["red", "orange", "yellow", "green", "blue", "purple"]

# 定义圣诞树的层数

tree_layers = 5

# 画圣诞树

def draw_tree(x, y, size):

()

(x, y)

()

((colors))

_fill()

for _ in range(3):

d(size)

(120)

_fill()

if size > 30:

draw_tree(x - size / 2, y - size * 2 / 3, size / 2)

draw_tree(x + size / 2, y - size * 2 / 3, size / 2)

# 画雪花

def draw_snowflake(x, y, size):

()

(x, y)

()

((colors))

_fill()

for _ in range(3):

d(size)

rd(size)

(120)

_fill()

# 画星星

def draw_star(x, y, size):

()

(x, y)

()

((colors))

_fill()

for _ in range(5):

d(size)

(144)

_fill()

# 主程序

for i in range(tree_layers):

draw_tree(0, -i * 30, 30 + i * 10)

for _ in range(100):

x = t(-350, 350)

y = t(-250, 250)

size = t(5, 20)

draw_snowflake(x, y, size)

for _ in range(50):

x = t(-350, 350)

y = t(-250, 250)

size = t(3, 10)

draw_star(x, y, size)

()

```