python代码画一个流星雨

下面是Python代码画一个流星雨的示例：

import turtle as tu
import random as ra
import math

tu.setup(1.0, 1.0)
tu.screensize(1.0, 1.0)
tu.bgcolor('black')

t = tu.Pen()
t.ht()

colors = ['red', 'yellow', 'white', 'purple', 'blue', 'green']

def draw_star(x, y, size, color):
    t.pencolor(color)
    t.penup()
    t.goto(x, y)
    t.pendown()
    t.begin_fill()
    for i in range(5):
        t.forward(size)
        t.right(144)
    t.end_fill()

def draw_meteor(x, y, size, color):
    t.pencolor(color)
    t.penup()
    t.goto(x, y)
    t.pendown()
    t.right(45)
    t.forward(size)
    t.right(135)
    t.forward(size * 2)
    t.right(135)
    t.forward(size)
    t.right(45)

while True:
    x = ra.randint(-500, 500)
    y = ra.randint(-300, 300)
    size = ra.randint(10, 50)
    color = ra.choice(colors)
    draw_meteor(x, y, size, color)
    draw_star(x, y, size / 5, color)
    t.clear()