Python 游戏初学

import sys, pygame, time
size = width, height = 700,700
fontColor = (0,0,255)
class walk:
'''This is a game about war.
Just like war 3.'''
def __init__(self):
'''Init the screen.
Get param and init the screen'''

#print ('this is init funnction')
def initMainGraph(self):
print ('ここでメン画面を初期化')
def outputChar(self, screen, imgRect):
oc = pygame.font.SysFont('Arial', 36)
str = 'Let\'s Start the Game'
wid = 100
hei = 300
for i in str:
surf = oc.render(i,0,fontColor)
rec = surf.get_rect()
wid += 20
rec.topleft = (wid, hei)
screen.blit(surf,rec)
pygame.display.flip()
time.sleep(0.25)
def slow(self, screen, imgRect):
print ('slow show')

def runGame():
pygame.init()
screen = pygame.display.set_mode(size)
bgimg = pygame.image.load('world.png').convert_alpha()#load bgImage
imgRect = bgimg.get_rect() #get the Area of the Image
screen.blit(bgimg,imgRect)
pygame.display.flip()
luxs = walk() #create a object
luxs.outputChar(screen, imgRect)
time.sleep(3)
while 1:
for event in pygame.event.get():
if event.type == pygame.QUIT:
sys.exit(0)

runGame()

初学者，做了一个小例子，显示背景图和文本