auto save

snake.py

@@ -55,10 +55,11 @@ while True:
         y -= 30
     else:
         y += 30
+
+    position.append((x, y))
     if x == apple_x and y == apple_y:
         apple_x = random.randint(0,660)
         apple_y = random.randint(0,480)
-    position.append((x, y))
     position.pop(0)
     # 将背景图画上去
     screen.blit(background, (0, 0))
@@ -69,7 +70,7 @@ while True:
         screen.blit(body, position[i])
 
     # 将果实画上去
-    screen.blit(food, (360, 300))
+    screen.blit(food, (apple_x,apple_y))
     # 刷新画面
     pygame.display.update()
     FPSCLOCK.tick(3)
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