How to create a snowfall scene using Python?

To create a snowy scene in Python, you can use some graphics libraries. Here is an example of using the Pygame library to create a snowy scene.

import pygame
import random

# 初始化Pygame
pygame.init()

# 定义屏幕尺寸
width, height = 800, 600
screen = pygame.display.set_mode((width, height))
pygame.display.set_caption("Snowfall")

# 定义雪花数量和速度
snowflake_count = 100
snowflake_speed = 1

# 加载雪花图片
snowflake_image = pygame.image.load("snowflake.png")

# 存储雪花位置和速度的列表
snowflakes = []
for _ in range(snowflake_count):
    x = random.randint(0, width)
    y = random.randint(0, height)
    speed = random.randint(1, snowflake_speed)
    snowflakes.append([x, y, speed])

# 游戏循环
running = True
while running:
    # 处理退出事件
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            running = False

    # 填充背景色
    screen.fill((0, 0, 0))

    # 更新雪花位置
    for i in range(snowflake_count):
        x, y, speed = snowflakes[i]
        y += speed
        if y > height:
            y = random.randint(-50, -10)
        snowflakes[i][1] = y

        # 绘制雪花
        screen.blit(snowflake_image, (x, y))

    # 刷新屏幕
    pygame.display.flip()

# 退出游戏
pygame.quit()

In the code above, we utilized a snowflake image named snowflake.png as the graphic for the snowflakes. Initially, we initialized Pygame and created a window. Next, we set the number and speed of the snowflakes, and used a list called snowflakes to store their position and speed information.

In the game loop, we initially handle the exit event. Then, we clear the screen and update the positions of the snowflakes. If the snowflakes go beyond the screen boundaries, we place them back at the top of the screen. Finally, we use the screen.blit() function to draw the snowflakes on the screen and pygame.display.flip() function to refresh the screen.

Please make sure you have the snowflake image named snowflake.png prepared in the same directory, and you will be able to see the snow falling after running the code.