save project

snake.py

@@ -5,10 +5,13 @@ from pygame import locals
 pygame.init()
 
 # 创建一个窗口
-screen=pygame.display.set_mode((1280,720))
+background=pygame.image.load("bg.png")
+screen=pygame.display.set_mode((800,600))
 
 while True:
     for event in pygame.event.get():
         print(event.type)
-        if event.type==4:
-            exit()
\ No newline at end of file
+        if event.type==12:
+            exit()
+    screen.blit(background,(0,0))
+    pygame.display.update()
\ No newline at end of file