以下是从一本书上抄下来稍加改动的源代码，在 Python Idle 里运行没有报错，然而弹出的 pygame 窗口却除了显示窗口标题外一片漆黑。（如下图）

import pygame import sys

set everything to where started

pygame.init()

size = width, height = 650, 650 speed = [-2,1] bg = (255, 255, 255)

create a window with a determined size

screen = pygame.display.set_mode(size)

create window title

pygame.display.set_caption("Hello!")

ball = pygame.image.load("D://Python//soccer.jpg")

position of the image

position = ball.get_rect()

while True: for event in pygame.event.get(): if event.type == pygame.QUIT: sys.exit()

move the image

position = position.move(speed)

if position.left < 0 or position.right > height: # flip image turtle = pygame.transform.flip(ball, True, False) # move to the other side speed[1] = -speed[1]

if position.top < 0 or position.bottom > height: speed[1] = -speed[1]

fill the background

screen.fill()

refresh image

screen.blit(ball, position)

refresh screen

pygame.display.flip() pygame.display.update()

10ms delay

pygame.time.delay(10)