auto save

snake.py

@@ -58,7 +58,8 @@ while True:
         score+=10
         a_x=random.randint(1,22)*30-30
         a_y=random.randint(1,16)*30-30
-    
+    else:
+        position.pop(0)  
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇的头画上去
@@ -66,14 +67,13 @@ while True:
     # 将贪吃蛇的身体画上去
     for i in range(len(position)-1):
         screen.blit(body, position[i])
-        
+  
     # 将果实画上去
     screen.blit(food, (a_x,a_y))
     # 刷新画面
     inf='Score'+str(score)
-    tx=ft.render(inf,True,(255,255,0))
+    tx=ft.render(inf,True,(255,0,255))
     screen.blit(tx,(0,0))
     pygame.display.update()
     FPSCLOCK.tick(3)
-    if x < 0 or x >660 or y < 0 or y >480:
-        exit()
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+    
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