Pygame窗口显示空白黑屏

Question

这是我的代码，请记住我几天前拿起了 python，所以我的代码可能是错误的，等等。我正在尝试制作一个显示一些文本（测试版）的窗口，并将显示两个我想制作成按钮的小矩形。

import sys
import pygame
from pygame.locals import *
pygame.init()

size = width, height = 720, 480
speed = [2, 2]
black = (0,0,0)
blue = (0,0,255)
green = (0,255,0)
red = (255,0,0)

screen = pygame.display.set_mode(size)
screen.fill((blue))

pygame.display.set_caption("BETA::00.0.1")

clock = pygame.time.Clock()

def game_intro():

  intro = True

  while intro:
     for event in pygame.event.get():
         print(event)
         if event.type == pygame.QUIT:
             pygame.quit()
             quit()

    gameDisplay.fill(blue)
    largeText = pygame.font.Font('freesansbold.ttf',115)
    TextSurf, TextRect = text_objects("BETA", largeText)
    TextRect.center = ((display_width/2),(display_height/2))
    gameDisplay.blit(TextSurf, TextRect)

    pygame.draw.rect(gameDisplay, green,(150,450,100,50))
    pygame.draw.rect(gameDisplay, red,(550,450,100,50))

    pygame.display.flip(screen)
    pygame.display.update(screen)
    clock.tick(15)

Answer 1

问题：

1. 缩进错误
2. 您的 game_intro() 函数已定义，但从未调用过
3. 你写了4次gameDisplay而不是screen，还有display_width, display_height而不是width, height
4. 在game_intro() 中，永远不会调用无限循环之后的代码
5. pygame.display.update(screen)不行，应该是pygame.display.update()更新全屏。 flip(screen)也需要改成flip()
6. text_objects() 函数未定义，但我在示例中找到了定义，您可能从 :) 复制了代码

更正的代码：

import sys
import pygame
from pygame.locals import *
pygame.init()

size = width, height = 720, 480
speed = [2, 2]
black = (0,0,0)
blue = (0,0,255)
green = (0,255,0)
red = (255,0,0)

screen = pygame.display.set_mode(size)

pygame.display.set_caption("BETA::00.0.1")

clock = pygame.time.Clock()


def text_objects(text, font):
    textSurface = font.render(text, True, black)
    return textSurface, textSurface.get_rect()

def game_intro():

  screen.fill(blue)

  largeText = pygame.font.Font('freesansbold.ttf',115)
  TextSurf, TextRect = text_objects("BETA", largeText)
  TextRect.center = ((width/2),(height/2))
  screen.blit(TextSurf, TextRect)

  pygame.draw.rect(screen, green,(150,450,100,50))
  pygame.draw.rect(screen, red,(550,450,100,50))

  pygame.display.flip()
  pygame.display.update()
  clock.tick(15)

  intro = True

  while intro:
     for event in pygame.event.get():
         print(event)
         if event.type == pygame.QUIT:
             pygame.quit()
             quit()


game_intro()