importpygameimportrandom#初始化pygamepygame.init()#设置屏幕尺寸和颜色WIDTH,HEIGHT=800,600BACKGROUND_COLOR=(255,255,255)EAGLE_COLOR=(0,0,255)CHICK_COLOR=(255,255,0)FPS=30#创建游戏窗口screen=pygame.display.set_mode((WIDTH,