PyGame：pygame.key.get_pressed 不起作用

如何解决PyGame：pygame.key.get_pressed 不起作用

我正在制作一个“世界上最难的游戏”模仿作为一个个人项目来提高自己，但键盘输入不起作用，我尝试将输入放入我的 while 循环中，但由于某种原因它仍然不起作用。

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import pygame
import sys


def rects():
    global running,x_speed,y_speed,vel_x,vel_y
    moving_rect.x += x_speed
    moving_rect.y += y_speed

# Border Collision system
if moving_rect.right >= WIDTH or moving_rect.left <= 0:
    x_speed *= -1
if moving_rect.bottom >= HEIGHT or moving_rect.top <= 0:
    y_speed *= -1

# Player Collision system
if moving_rect.colliderect(player_rect):
    running = False
    pygame.quit()
    sys.exit()

# Key Inputs
keys_pressed = pygame.key.get_pressed()
if keys_pressed == pygame.K_UP:
    player_rect.y -= vel_y
if keys_pressed == pygame.K_DOWN:
    player_rect.y += vel_y
if keys_pressed == pygame.K_LEFT:
    player_rect.x -= vel_x
if keys_pressed == pygame.K_RIGHT:
    player_rect.x += vel_x

pygame.draw.rect(screen,(255,255,255),moving_rect)
pygame.draw.rect(screen,115,0),player_rect)

我没有尝试过使用 KEYUP 和 KEYDOWN，因为当同时完成两个键盘输入时，这非常耗时且有很多问题。