参数1必须是pyplay。表面，而不是功能

Question

我想先说一下，我确实查过这个问题，但每个似乎有类似问题的人都找到了一个不适合我的解决方案。我正在使用Python3.4.3 64位和pygame 1.9.2a，并在标题中说明了错误。目前我的代码如下所示：

import pygame

pygame.init()

display_width = 800
display_height = 600

black = (0,0,0)
white = (255,255,255)
red = (200,0,0)
bright_red = (255,0,0)
green = (0,200,0)
bright_green = (0,255,0)
blue = (0,0,200)
bright_blue = (0,0,255)

gameDisplay = pygame.display.set_mode((display_width,display_height))
pygame.display.set_caption('Le jeux')
clock = pygame.time.Clock()

thatonething = pygame.image.load('thatonething.png')

def thatonething(x,y):
    gameDisplay.blit(thatonething,(x,y))

x = (display_width * 0.45)
y = (display_height * 0.8)

crashed = False

while not crashed:

    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            crashed = True
        print(event) 

    gameDisplay.fill(white)
    thatonething(x,y)
    pygame.display.update() 
    clock.tick(30) 

pygame.quit() 
quit()

运行它给了我以下信息：

Traceback (most recent call last):
  File "C:/Users/Windows 8/Desktop/Scripts/New folder/Main.py", line 39, in <module>
    thatonething(x,y)
  File "C:/Users/Windows 8/Desktop/Scripts/New folder/Main.py", line 24, in thatonething
    gameDisplay.blit(thatonething,(x,y))
TypeError: argument 1 must be pygame.Surface, not function

提前谢谢，如果这听起来像个愚蠢的问题，我很抱歉。

编辑：多亏了布莱恩，这个问题现在已经解决了。对于任何有类似问题的人来说，以后可能会看到这个，更正后的版本是这样的：

import pygame

pygame.init()

display_width = 800
display_height = 600

black = (0,0,0)
white = (255,255,255)
red = (200,0,0)
bright_red = (255,0,0)
green = (0,200,0)
bright_green = (0,255,0)
blue = (0,0,200)
bright_blue = (0,0,255)

gameDisplay = pygame.display.set_mode((display_width,display_height))
pygame.display.set_caption('Le jeux')
clock = pygame.time.Clock()

thatonething = pygame.image.load('thatonething.png')

def somefunction(x,y):
    gameDisplay.blit(thatonething,(x,y))

x = (display_width * 0.45)
y = (display_height * 0.8)

crashed = False

while not crashed:

    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            crashed = True
        print(event) #This creates a log of the events that pygame has been handling.

    gameDisplay.fill(white)
    somefunction(x,y)
    pygame.display.update() #Updates everything "pygame.display.flip()" updates just one thing
    clock.tick(30) #This defines the refresh rate i.e. 30 in brackets gives 30 fps

pygame.quit() #Closes the game (with the next line)
quit()

关键的区别在于'that onets'不再是函数的名称。

Answer 1

你有一个功能：

def thatonething(x,y):
    gameDisplay.blit(thatonething,(x,y))

当您放置gameDisplay.blit（thatoneting，（x，y））时，它将参数解释为1:thatoneting，2:（x，y）。

您可能打算将其他内容作为输入输入到gameDisplay.blit，因为即使删除逗号，也会有一个无限递归。

我不确定这个函数在做什么，但是你可能想考虑重新设计它。