PyGame键被按住:当按下一个键时，一些字符被多次写入

import pygame

pygame.init()

while True:
    for event in pygame.event.get():
        if event.type == pygame.KEYDOWN:
            keys = pygame.key.get_pressed()
            if keys[pygame.K_SPACE]:
                # 按下空格键时执行的操作
                pass

import pygame

pygame.init()

while True:
    for event in pygame.event.get():
        if event.type == pygame.KEYDOWN:
            if event.key == pygame.K_SPACE:
                # 按下空格键时执行的操作
                pass
        elif event.type == pygame.KEYUP:
            if event.key == pygame.K_SPACE:
                # 松开空格键时执行的操作
                pass