save project

snake.py

 import pygame
+from pygame import locals
 
 # 初始化pygame，为使用pygame做准备
 pygame.init()
-from pygame import locals
+background = pygame.image.load('bg.png')
+
+
 x = 800
 y = 600
 # 创建一个窗口
@@ -14,4 +17,6 @@ while True:
             x -= 20
             y -= 20
             screen = pygame.display.set_mode((x,y))
-            screen = pygame.display.set_mode((x,y))
\ No newline at end of file
+            screen = pygame.display.set_mode((x,y))
+    screen.blit(background,(10,10))
+    screen.display.update()
\ No newline at end of file