save project

snake.py

@@ -13,9 +13,9 @@ background = pygame.image.load('bg.png')
 right = pygame.image.load('right.png')
 right = pygame.image.load('right.png')
 food = pygame.image.load('apple.png')
 food = pygame.image.load('apple.png')
 body = pygame.image.load('body.png')
 body = pygame.image.load('body.png')
-#left = pygame.image.load('left.png')
-#up = pygame.image.load('up.png')
-#down = pygame.image.load('down.png')
+left = pygame.image.load('left.png')
+up = pygame.image.load('up.png')
+down = pygame.image.load('down.png')
 
 
 x,y = 240,120
 x,y = 240,120
 position = [(180,90),(180,120),(210,120),(x,y)]
 position = [(180,90),(180,120),(210,120),(x,y)]
@@ -29,6 +29,18 @@ while True:
             # 接收到退出事件后退出程序
             # 接收到退出事件后退出程序
             exit()
             exit()
         if event.type ==locals.KEYDOWN:
         if event.type ==locals.KEYDOWN:
+            if event.key == locals.K_RIGHT and setheading != "left":
+                setheading = 'right'
+                snake_head = right
+            if event.key == locals.K_LEFT and setheading != "right":
+                setheading = 'left'
+                snake_head = left          
+            if event.key == locals.K_UP and setheading != "down":
+                setheading = 'up'
+                snake_head = up
+            if event.key == locals.K_DOWN and setheading != "up":
+                setheading = 'down'
+                snake_head = down
     if setheading =="right":
     if setheading =="right":
         x += 30
         x += 30
     elif  setheading =="left":
     elif  setheading =="left":