save project

snake.py

@@ -3,8 +3,9 @@ from pygame import locals
 
 # 初始化pygame，为使用硬件做准备
 pygame.init()
-x == 240
-y == 120
+fps_clock = pygame.time.Clock()
+x = 240
+y = 120
 # 创建一个窗口
 screen = pygame.display.set_mode((660, 480))
 
@@ -19,9 +20,8 @@ while True:
         if event.type == locals.QUIT:
             # 接收到退出事件后退出程序
             exit()
-while True:
-    x+30=x
     
+    x +=30
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇画上去
@@ -33,4 +33,5 @@ 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()
+    fps_clock.tick(3)
\ No newline at end of file