按鼠标滚轮缩放图像pygame示例

下面是部分代码预览：

"""
   按鼠标滚轮缩放图像pygame示例
"""

import pygame
from pygame.locals import *

width,height = 680,660
pos = width//2,height//2
image = 'beauty.jpg'

screen = pygame.display.set_mode((width,height))
pygame.display.set_caption("按鼠标滚轮缩放图像pygame示例 www.lixingqiu.com")

w,h = image.get_width(),image.get_height()
k = h/w                                   # 高度和宽度之比
step = 10
running = True
while running:
    for event in pygame.event.get():
        if event.type == QUIT:running = False

    screen.fill((0,0,0))
    screen.blit(image2,rect)
    pygame.display.update()

pygame.quit()            

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