auto save

snake.py

@@ -61,7 +61,8 @@ while True:
         score=score+10
     else:
         position.pop(0)
-    if x <or x > 630 or y <0 or y >450:
+    if x <0 or x > 630 or y <0 or y >450:
+        exit()
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇的头画上去
@@ -72,9 +73,9 @@ while True:
 
     # 将果实画上去
     screen.blit(food, (apple_x, apple_y))
-    info="Score："+str(score)
+    info="Score:"+str(score)
     text=my_font.render(info,True,(0,0,0))
     screen.blit(text,(540,10))
     # 刷新画面
     pygame.display.update()
-    FPSCLOCK.tick(3)
\ No newline at end of file
+    FPSCLOCK.tick(6)
\ No newline at end of file