save project

snake.py

@@ -12,12 +12,28 @@ background = pygame.image.load('bg.png')
 right = pygame.image.load('right.png')
 food = pygame.image.load('apple.png')
 body = pygame.image.load('body.png')
-
+score=0
+sethead="right"
+root=right
 while True:
     for event in pygame.event.get():
-        if event.type == locals.QUIT:
+        if event.type == locals.QUIT:       
             # 接收到退出事件后退出程序
             exit()
+        if event.type==locals.KEYDOWN:
+            if event.key==locals.K_RIGHT and sethead!="left":
+                sethead='right'
+                root=right
+            if event.key==locals.K_left and sethead!="right":
+                sethead='left'
+                root=left
+            if event.key==locals.K_up and sethead!="down":
+                sethead='up'
+                root=up
+            if event.key==locals.K_up and sethead!="up":
+                sethead='down'
+                root=down 
+    if w==right    
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇画上去
@@ -29,4 +45,6 @@ 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()
+    
\ No newline at end of file