save project

snake.py

@@ -6,7 +6,8 @@ pygame.init()
 
 # 创建一个窗口
 screen = pygame.display.set_mode((660, 480))
-x==240,y==120
+FPSCLOCK=pygame.time.Clock()
+x,y=240,120
 # 背景
 background = pygame.image.load('bg.png')
 right = pygame.image.load('right.png')
@@ -30,4 +31,5 @@ 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()
+    FPSCLOCK.tick(3)
\ No newline at end of file