save project

snake.py

@@ -6,7 +6,7 @@ pygame.init()
 
 # 创建一个窗口
 screen = pygame.display.set_mode((660, 480))
-
+F = pygame.time.Clock()
 # 背景
 background = pygame.image.load('bg.png')
 right = pygame.image.load('right.png')
@@ -18,6 +18,7 @@ while True:
         if event.type == locals.QUIT:
             # 接收到退出事件后退出程序
             exit()
+    x += 30        
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇画上去
@@ -29,4 +30,5 @@ while True:
     # 将果实画上去
     screen.blit(food, (360, 300))
     # 刷新画面
-    pygame.display.update()
\ No newline at end of file
+    pygame.display.update()
+    F.tick(24)
\ No newline at end of file