使用python写一段脚本，可以实现桌面放烟花的效果

好的，下面是一个简单的Python脚本，可以在桌面上放置烟花：

import pygame
import random
import time

# 初始化pygame
pygame.init()

# 设置屏幕大小
screen_width = 800
screen_height = 600
screen = pygame.display.set_mode((screen_width, screen_height))

# 加载烟花图像
firework_image = pygame.image.load('firework.png')

# 定义烟花的类
class Firework(pygame.sprite.Sprite):
    def __init__(self, x, y):
        super().__init__()
        self.image = firework_image
        self.rect = self.image.get_rect()
        self.rect.x = x
        self.rect.y = y
        self.timer = 0
        self.exploded = False

    def update(self):
        # 烟花爆炸
        if self.timer >= 60 and not self.exploded:
            self.explode()
            self.exploded = True
        # 烟花消失
        if self.timer >= 120:
            self.kill()
        self.timer += 1

    def explode(self):
        # 在烟花周围生成小火花
        for i in range(30):
            particle = Particle(self.rect.x, self.rect.y)
            all_sprites.add(particle)
            particles.add(particle)

# 定义小火花的类
class Particle(pygame.sprite.Sprite):
    def __init__(self, x, y):
        super().__init__()
        self.image = pygame.Surface((2, 2))
        self.image.fill((255, 255, 255))
        self.rect = self.image.get_rect()
        self.rect.x = x
        self.rect.y = y
        self.vel_x = random.randint(-10, 10) / 10
        self.vel_y = random.randint(-10, 10) / 10
        self.timer = 0

    def update(self):
        self.rect.x += self.vel_x
        self.rect.y += self.vel_y
        self.vel_y += 0.1
        self.timer += 1
        if self.timer >= 60:
            self.kill()

# 创建精灵组
all_sprites = pygame.sprite.Group()
fireworks = pygame.sprite.Group()
particles = pygame.sprite.Group()

# 主循环
while True:
    # 监听事件
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            pygame.quit()
            exit()

    # 随机生成烟花
    if random.random() < 0.01:
        x = random.randint(0, screen_width)
        y = random.randint(0, screen_height)
        firework = Firework(x, y)
        all_sprites.add(firework)
        fireworks.add(firework)

    # 更新精灵组
    all_sprites.update()

    # 清空屏幕
    screen.fill((0, 0, 0))

    # 绘制精灵组
    all_sprites.draw(screen)

    # 更新屏幕
    pygame.display.update()

    # 延时一段时间
    time.sleep(0.01)

在运行脚本之前，你需要先在同一目录下放置一张名为`firework.png`的烟花图像。运行脚本后，将会在桌面上不断生成烟花。