from random import randint from time import sleep size(500, 500) score = 0 lives = 3 ball = ellipse(250, 250, 20, 20) paddle = rect(200, 480, 100, 10) bricks = [] for i in range(5): for j in range(10): brick = rect(j*50, i*20, 50, 20) bricks.append(brick) while True: ball.x+= 5 paddle.x = mouseX - 50 if ball.y < 0: ball.y = 0 elif ball.y > height: lives -= 1 ball.x = 250 ball.y = 250 sleep(1) elif ball.x < 0 or ball.x > width: ball.xspeed *= -1 elif ball.y + ball.height > paddle.y and ball.x > paddle.x and ball.x < paddle.x + paddle.width: ball.yspeed *= -1 else: for brick in bricks: if ball.intersects(brick): bricks.remove(brick) ball.yspeed *= -1 score += 10 background(255) fill(0) text("Score: " + str(score), 10, 20) text("Lives: " + str(lives), 10, 40) for brick in bricks: fill(randint(0, 255), randint(0, 255), randint(0, 255)) rect(brick.x, brick.y, brick.width, brick.height) fill(255, 0, 0) rect(paddle.x, paddle.y, paddle.width, paddle.height) fill(0, 0, 255) ellipse(ball.x, ball.y, ball.width, ball.height) if len(bricks) == 0 or lives == 0: background(255) fill(0) textSize(32) text("Game Over", width/2-80, height/2-16) textSize(16) text("Final Score: " + str(score), width/2-60, height/2+16) break 我使用processing当中的python部分写的打砖块游戏 那里存在错误

在你的代码中，有两个错误： 1. 在代码的开头，你需要把 `from random import randint from time import sleep` 改为两行，分别写成 `from random import randint` 和 `from time import sleep`。 2. 在第15行，你需要添加一个 `ball.yspeed` 的变量来控制球的垂直速度，否则会导致球不会弹回来。 以下是修改后的代码： ``` from random import randint from time import sleep size(500, 500) score = 0 lives = 3 ball = ellipse(250, 250, 20, 20) paddle = rect(200, 480, 100, 10) bricks = [] for i in range(5): for j in range(10): brick = rect(j*50, i*20, 50, 20) bricks.append(brick) while True: ball.x += 5 ball.y += ball.yspeed paddle.x = mouseX - 50 if ball.y < 0: ball.y = 0 ball.yspeed *= -1 elif ball.y > height: lives -= 1 ball.x = 250 ball.y = 250 ball.yspeed = 5 sleep(1) elif ball.x < 0 or ball.x > width: ball.xspeed *= -1 elif ball.y + ball.height > paddle.y and ball.x > paddle.x and ball.x < paddle.x + paddle.width: ball.yspeed *= -1 else: for brick in bricks: if ball.intersects(brick): bricks.remove(brick) ball.yspeed *= -1 score += 10 background(255) fill(0) text("Score: " + str(score), 10, 20) text("Lives: " + str(lives), 10, 40) for brick in bricks: fill(randint(0, 255), randint(0, 255), randint(0, 255)) rect(brick.x, brick.y, brick.width, brick.height) fill(255, 0, 0) rect(paddle.x, paddle.y, paddle.width, paddle.height) fill(0, 0, 255) ellipse(ball.x, ball.y, ball.width, ball.height) if len(bricks) == 0 or lives == 0: background(255) fill(0) textSize(32) text("Game Over", width/2-80, height/2-16) textSize(16) text("Final Score: " + str(score), width/2-60, height/2+16) break ```