Pygame:如何更改背景颜色 [英] Pygame: how to change background color

问题描述

import pygame, sys
pygame.init()
screen = pygame.display.set_mode([800,600])
white = [255, 255, 255]
red = [255, 0, 0]
screen.fill(white)
pygame.display.set_caption("My program")
pygame.display.flip()



background = input("What color would you like?: ")
if background == "red":
    screen.fill(red)

running = True
while running:
    for i in pygame.event.get():
        if i.type == pygame.QUIT:
        running = False
        pygame.quit()

我想询问用户他想要什么背景颜色.如果用户写红色，颜色不会改变，仍然保持白色.

I'm trying to ask the user what background color he would like to have. If the user writes red, the color doesn't change and still stays white.

推荐答案

下次更新显示时它会重绘为红色.添加pygame.display.update():

It will redraw as red the next time you update the display. Add pygame.display.update():

background = input("What color would you like?: ")
if background == "red":
    screen.fill(red)
    pygame.display.update()

或者，您可以在(有条件地)更改背景颜色之后将 pygame.display.flip() 移动到.

Or, you could move the pygame.display.flip() to after you (conditionally) change the background color.

另见 pygame.display.update 和 pygame 之间的区别.display.flip

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