save project

my_game.py

@@ -31,7 +31,7 @@ index = 0
 y = 400
 jumpState = "runing"
 t = 30
-Block_list = pygame.sprite.Group()
+block_list = pygame.sprite.Group()
 time = 0
 while True:
     for event in pygame.event.get():
@@ -88,7 +88,7 @@ while True:
             block_list.add(block)
     for sprite in block_list:
         sprite.rect.x -= 8
-        sprite.blit(sprite.image,(sprite.rect.x,sprite.rect.y))
+        screen.blit(sprite.image,(sprite.rect.x,sprite.rect.y))
         if sprite.rect.x < 0-sprite.rect.width:
             sprite.kill()
     pygame.display.update()