Python Pygame显示不更新

我正在pygame中制作一个游戏，但显示不更新。我正在使用update（）函数，并使用fill（）清除循环开头的屏幕。Pygame也不会很快加载；一旦pygame应用程序显示在mac上运行的应用程序中，我就必须点击“退出”，屏幕才会出现

"Module Imports"
import pygame as pg
import shelve

"Import Classes"
from Settings import Settings
from Settings import Screen
from Settings import Save
from Random import Random
from Input import Input
from Input import Button
# Init Classes
Settings = Settings()
Screen = Screen()
Random = Random()
Save = Save()

on = True

pg.init()

event_const = pg.event.wait()

save_file = shelve.open("/Volumes/HISTORYGAME/Game_Saves/Save_File")

clock = pg.time.Clock()
MainDisplay = pg.display.set_mode((Screen.width, Screen.height))
pg.display.set_caption(Settings.title)
pg.display.init()


class Mouse:
    def __init__(self):
        self.left = False
        self.right = False


Mouse = Mouse()


def begin_game():
    players = []
    num_players = input("How Many Players (enter int): ")

    save_file["num_players_var"] = num_players

    for pl in range(num_players):
        players.append(raw_input("Enter Player Name: "))

    save_file["players_var"] = players

    print(players)


def intro():
    intro = True

    for event in pg.event.get():
        if event.get == pg.QUIT:
            intro = False
            on = False
        if event.get == pg.event.KEYDOWN:
            pass


# begin_game()

test_button = Button(0, 0, 200, 200, "Enter Text Here", MainDisplay)
buttons = []
buttons.append(test_button)

loops = 0

test_x = 10
test_y = 10

while on:
    MainDisplay.fill((0, 0, 0))
    for event in pg.event.get():
        if event.type == pg.QUIT:
            On = False
            pg.quit()
            exit()
        if event.type == pg.KEYDOWN:
            if event.key == pg.K_ESCAPE:
                On = False
                pg.quit()
                exit()
            if event.key == pg.K_RIGHT:
                test_x += 10
                print("right")
        if event.type == pg.MOUSEBUTTONDOWN:
            if event.button == 1:
                Mouse.left = True
            else:
                Mouse.left = False
        if event.type == pg.MOUSEBUTTONUP:
            if event.button == 1:
                Mouse.left = False

    for button in buttons:
        button.draw(pg.mouse.get_pos(), event_const)
        if button.clicked is True:
            print("True \n" * 100)

    pg.draw.line(MainDisplay, (255, 0, 0), (100, 100), (600, 600))
    pg.draw.rect(MainDisplay, (255, 0, 0), (test_x, test_y, 20, 20))

    pg.display.flip()
    pg.display.update()
    clock.tick(Settings.FPS)
    loops += 1
    print(str(loops))

---

我怀疑等待事件或使用

input（）

读取stdin会导致锁定问题。但是在所展示的代码中，对它的调用被注释掉了。真的不可能知道

这个版本的代码带有一个重新创建的

按钮

类，可以正常工作，但显然它没有任何引用的类

"Module Imports"
import pygame 
#import shelve

"Import Classes"
#from Settings import Settings
#from Settings import Screen
#from Settings import Save
#from Random import Random
#from Input import Input
#from Input import Button
# Init Classes
#Settings = Settings()
#Screen = Screen()
#Random = Random()
#Save = Save()

WINDOW_WIDTH  = 600
WINDOW_HEIGHT = 600

class Mouse:
    def __init__(self):
        self.left = False
        self.right = False

class Button:
    def __init__( self, x, y, width, height, label, window ):
        self.rect    = pygame.Rect( x, y, width, height )
        self.clicked = False
        self.window  = window
        self.font    = pygame.font.Font( None, 20 )
        self.label   = self.font.render( label, True, ( 255, 255, 255 ) ) # large white text

    def draw( self, mouse_pos ):
        if ( self.rect.collidepoint( mouse_pos ) ):
            colour = ( 0, 200, 0 )  # green if mouse over
        else:
            colour = (0, 0, 200)    # blue otherwise
        pygame.draw.rect( self.window, colour, self.rect, 0 )  # filled rectangle
        # centred text
        label_rect = self.label.get_rect()
        x_offset = ( self.rect.width  - label_rect.width ) // 2
        y_offset = ( self.rect.height - label_rect.height ) // 2
        self.window.blit( self.label, ( x_offset, y_offset ) )

    def checkClick( self, mouse_pos ):
        if ( self.rect.collidepoint( mouse_pos ) ):
            self.clicked = True
        else:
            self.clicked = False


def begin_game():
    players = [ "Mork", "Mindy", "E.T." ]   # test data
    #players = []
    #num_players = input("How Many Players (enter int): ")
    #save_file["num_players_var"] = num_players
    #for pl in range(num_players):
    #    players.append(raw_input("Enter Player Name: "))
    #save_file["players_var"] = players
    print(players)




# Initialisation
pygame.init()
pygame.font.init()
#event_const = pygame.event.wait()
#save_file = shelve.open("/Volumes/HISTORYGAME/Game_Saves/Save_File")
clock = pygame.time.Clock()
window = pygame.display.set_mode( ( WINDOW_WIDTH, WINDOW_HEIGHT ) )
pygame.display.set_caption( "Settings.title" )
pygame.display.init()



Mouse = Mouse()
begin_game()
test_button = Button(0, 0, 200, 200, "Enter Text Here", window)
buttons = []
buttons.append(test_button)

loops = 0
test_x = 10
test_y = 10

on = True
while on:
    window.fill((0, 0, 0))
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            on = False
        elif event.type == pygame.KEYDOWN:
            if event.key == pygame.K_ESCAPE:
                on = False
            elif event.key == pygame.K_RIGHT:
                test_x += 10
                print("right")
        elif event.type == pygame.MOUSEBUTTONDOWN:
            if event.button == 1:
                Mouse.left = True
        elif event.type == pygame.MOUSEBUTTONUP:
            if event.button == 1:
                Mouse.left = False
                for button in buttons:
                    button.checkClick( event.pos )  # buttons actuate on mouse-up

    for button in buttons:
        button.draw( pygame.mouse.get_pos() ) #, event_const)
        if button.clicked is True:
            print("True \n" * 5) # 100

    pygame.draw.line(window, (255, 0, 0), (100, 100), (600, 600))
    pygame.draw.rect(window, (255, 0, 0), (test_x, test_y, 20, 20))

    pygame.display.flip()
    #pygame.display.update()   # only need update() or flip()
    clock.tick( 60 ) #Settings.FPS)
    loops += 1
    #print(str(loops))   # Too noisy

# exiting
pygame.quit()

---

第一个

event\u const=pg.event.wait（）

，为什么代码中有这个？这会导致pygame等待事件。但是主窗口没有初始化，所以这要么什么也不做，要么导致程序挂起。@kingsley谢谢，我认为这是一种以后不用for循环测试任何事件的方法。是否有其他方法可以做到这一点？可能只是在初始化窗口后将其移动到（在

类鼠标之前）

。@kingsley即使有此疑难解答更新，问题仍然存在：我已修复了显示屏启动时的问题，但它仍然是空白