#壁球小游戏 import pygame,sys pygame.init()
size=width,height=600,400 speed=[5,5] BLACK=0,0,0 screen=pygame.display.set_mode(size) pygame.display.set_caption(“Pygame壁球”) ball=pygame.image.load(“PYG02-ball.gif”) ballrect=ball.get_rect() fps=300 fclock=pygame.time.Clock() #创建一个Clock对象，用于操作时间
while True: for event in pygame.event.get(): if event.type == pygame.QUIT: sys.exit() elif event.typepygame.KEYDOWN: if event.keypygame.K_LEFT: speed[0]=speed[0] if speed[0]0 else(abs(speed[0]-1)*int(speed[0]/abs(speed[0]))) elif event.keypygame.K_RIGHT: speed[0]=speed[0]+1 if speed[0]>0 else speed[0]-1 elif event.keypygame.K_UP: speed[1]=speed[1]+1 if speed[1]>0 else speed[1]-1 elif event.keypygame.K_DOWN: speed[1]=speed[1] if speed[1]==0 else(abs(speed[1])-1)*int(speed[1]/abs(speed[1])) ballrect=ballrect.move(speed[0],speed[1]) if ballrect.left<0 or ballrect.right>width: speed[0]=-speed[0] if ballrect.top<0 or ballrect.bottom>height: speed[1]=-speed[1]
screen.fill(BLACK) screen.blit(ball,ballrect) pygame.display.update() fclock.tick(fps)
