因此,我在网上为此尝试了一些解决方案,但每个解决方案都返回不同的错误。最近我决定尝试类似的东西:
import cStringIO, pygame, os
from pygame.locals import *
pygame.init()
mainClock = pygame.time.Clock()
WINDOWWIDTH = 640
WINDOWHEIGHT = 480
windowSurface = pygame.display.set_mode((WINDOWWIDTH, WINDOWHEIGHT), 0, 32)
pygame.display.set_caption('StringIO Test')
with open("image.png", "rb") as infile:
outfile = cStringIO.StringIO()
outfile.write(infile.read())
class DummyFile:
def __init__(self, data):
self.data = data
self.pos = 0
def read(self, size=None):
start = self.pos
end = len(self.data) - 1
if size is not None:
end = min(len(self.data), self.pos + size)
self.pos = end
return self.data[start:end]
def seek(self, offset, whence=0):
if whence == 0:
self.pos = offset
elif whence == 1:
self.pos = self.pos + offset
elif whence == 2:
self.pos = len(data) + offset
def write(self):
pass
while True:
windowSurface.fill((0,0,0))
testIm = pygame.image.load(DummyFile(outfile.getvalue()))
testImRect = testIm.get_rect()
testImRect.topleft = (0,0)
windowSurface.blit(testIm, testImRect)
pygame.display.flip()
这只是返回:
error: Can't seek in this data source
本质上,我的程序将加密/解密图像文件,并允许用户查看它们而无需将解密的副本保存到硬盘驱动器。在另一个问题中,有人告诉我 stringIO 对象为此目的工作,如果您要广泛使用它,python 文档建议使用 cStringIO。pygame 的问题不想将对象作为图像。有任何想法吗?