save project

snake.py

@@ -61,7 +61,7 @@ while True:
         score=score+10
         score=score+10
     else:
     else:
         position.pop(0) 
         position.pop(0) 
-if x < 0 or x > 630 or y < 0 or y > 450:
+    if x < 0 or x > 630 or y < 0 or y > 450:
         exit()
         exit()
     # 将背景图画上去
     # 将背景图画上去
     screen.blit(background, (0, 0))
     screen.blit(background, (0, 0))