写一个3d粒子圣诞树的python代码

以下是一个简单的3D粒子圣诞树的Python代码示例：

import turtle
from random import randint

# 设置画布和画笔
screen = turtle.Screen()
screen.bgcolor("black")
screen.title("3D Particle Christmas Tree")
pen = turtle.Turtle()
pen.speed(0)
pen.color("white")
pen.penup()

# 定义绘制粒子的函数
def draw_particle():
    x = randint(-200, 200)
    y = randint(-200, 200)
    size = randint(1, 5)
    pen.goto(x, y)
    pen.pendown()
    pen.begin_fill()
    pen.circle(size)
    pen.end_fill()
    pen.penup()

# 绘制圣诞树
def draw_tree():
    pen.goto(0, -200)
    pen.pendown()
    pen.color("green")
    pen.begin_fill()
    pen.goto(-50, 0)
    pen.goto(50, 0)
    pen.goto(0, -200)
    pen.end_fill()
    pen.penup()

# 绘制雪花
def draw_snow():
    pen.color("white")
    pen.pensize(2)
    for i in range(80):
        x = randint(-248, 248)
        y = randint(-100, 248)
        pen.goto(x, y)
        petal_number = 6
        snow_size = randint(2, 10)
        for j in range(petal_number):
            pen.pendown()
            pen.forward(snow_size)
            pen.backward(snow_size)
            pen.right(360 / petal_number)
            pen.penup()

# 主函数
def main():
    draw_tree()
    for _ in range(100):
        draw_particle()
    draw_snow()
    turtle.done()

# 调用主函数
main()