如何在Pygame中更改游戏中的分数？

import pygame

def draw_score(screen, font, score, x, y):
    score_text = font.render("Score: " + str(score), True, (255, 255, 255))
    screen.blit(score_text, (x, y))

font = pygame.font.Font(None, 36)

score += 1

draw_score(screen, font, score, 10, 10)

import pygame
import sys

pygame.init()

screen = pygame.display.set_mode((800, 600))
pygame.display.set_caption("Score Example")

font = pygame.font.Font(None, 36)
score = 0

def draw_score(screen, font, score, x, y):
    score_text = font.render("Score: " + str(score), True, (255, 255, 255))
    screen.blit(score_text, (x, y))

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

        # 示例：每按下空格键，得分增加1
        if event.type == pygame.KEYDOWN:
            if event.key == pygame.K_SPACE:
                score += 1

    screen.fill((0, 0, 0))

    draw_score(screen, font, score, 10, 10)

    pygame.display.flip()