import pygame,sys

pygame.init()
window_size = (260,300)
sc = pygame.display.set_mode(window_size)
pygame.display.set_caption('反弹的小球')

ball_xy = [110,175]
ball_r = 10
ball_speed = [3,3]

box = pygame.Rect(115,290,50,15)

zk_lst = []
zk_x = 10
zk_y = 10
for i in range(5):
    for j in range(5):
        zk_rect = pygame.Rect(zk_x,zk_y,40,20)
        zk_lst.append(zk_rect)
        zk_x += 50
    zk_x = 10
    zk_y += 30

running = True
while running:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            running = False

    sc.fill('white')

    ball = pygame.draw.circle(sc, 'black', ball_xy, ball_r)

    if ball_xy[0] - ball_r < 0 or ball_xy[0] + ball_r > window_size[0]:
        ball_speed[0] = -ball_speed[0]
    if ball_xy[1] - ball_r < 0 or ball_xy[1] + ball_r > window_size[1]:
        ball_speed[1] = -ball_speed[1]
    if ball_xy[1] + ball_r > 300 and not ball.colliderect(box):
        running = False
    if ball.colliderect(box):
        ball_speed[1] = -ball_speed[1]

    for i in zk_lst:
        if ball.colliderect(i):
            zk_lst.remove(i)
            if zk_lst == []:
                running = False

    ball_xy[0] += ball_speed[0]
    ball_xy[1] += ball_speed[1]

    pygame.draw.rect(sc, (0, 0, 0), rect=box)

    for i in zk_lst:
        pygame.draw.rect(sc, 'blue', rect=i)

    keys = pygame.key.get_pressed()
    if keys[pygame.K_LEFT]:
        if box.x <= 0:
            continue
        else:
            box.x += -2
    if keys[pygame.K_RIGHT]:
        if box.x >= 260:
            continue
        else:
            box.x += 2

    pygame.display.flip()
    pygame.time.Clock().tick(35)
pygame.quit()
sys.exit()