camera.py 文件源码

def get_and_flip(self):
       # if you don't want to tie the framerate to the camera, you can check and
       # see if the camera has an image ready.  note that while this works
       # on most cameras, some will never return true.
       if 0 and self.camera.query_image():
           # capture an image

           self.snapshot = self.camera.get_image(self.snapshot)
       self.snapshot = self.camera.get_image(self.snapshot)
       #self.snapshot = self.camera.get_image()

       # blit it to the display surface.  simple!
       self.display.blit(self.snapshot, (0,0))
       pygame.display.flip()