python - 使用 pygame 在 Python 中通过按键加载图像

Question

我正在尝试制作一个简单的图像库，它使用 python 中的 pygame 通过按键加载图像，这就是我所取得的进展

import pygame

pygame.init()
width=1366;
height=768
screen = pygame.display.set_mode((width, height ), pygame.NOFRAME)
pygame.display.set_caption('Katso')
penguin = pygame.image.load("download.png").convert()
mickey = pygame.image.load("mickey.jpg").convert()

x = 0; # x coordnate of image
y = 0; # y coordinate of image

*keys = pygame.event.get()
for event in keys:
    if event.type == pygame.KEYDOWN and event.key == pygame.K_LEFT:
            screen.blit(mickey,(x,y)); pygame.display.update()
    if event.type == pygame.KEYDOWN and event.key == pygame.K_RIGHT:
            screen.blit(penguin,(x,y)); pygame.display.update()*

running = True
while (running): # loop listening for end of game
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            running = False
#loop over, quit pygame

pygame.quit()

我希望按箭头键加载某些图像

屏幕打开但未加载图像

Answer 1

程序从不等待按键，因此您必须在 while 循环内检查按键。

import pygame

# --- constants --- (UPPER_CASE)

WIDTH = 1366
HEIGHT = 768

# --- main ---

# - init -

pygame.init()
screen = pygame.display.set_mode((WIDTH, HEIGHT), pygame.NOFRAME)
pygame.display.set_caption('Katso')

# - objects -   

penguin = pygame.image.load("download.png").convert()
mickey = pygame.image.load("mickey.jpg").convert()

x = 0 # x coordnate of image
y = 0 # y coordinate of image

# - mainloop - 

running = True

while running: # loop listening for end of game
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            running = False
        elif event.type == pygame.KEYDOWN:
            if event.key == pygame.K_LEFT:
                #screen.fill( (0, 0, 0) )
                screen.blit(mickey,(x,y))
                pygame.display.update()
            elif event.key == pygame.K_RIGHT:
                #screen.fill( (0, 0, 0) )
                screen.blit(penguin,(x,y))
                pygame.display.update()

# - end -

pygame.quit()