save project

snake.py

@@ -16,6 +16,7 @@ left = pygame.image.load('left.png')
 down = pygame.image.load('down.png')
 right = pygame.image.load('right.png')
 up = pygame.image.load('up.png')
+body = pygame.image.load('body.png')
 x,y=240,120
 pako=[(180, 90),(180, 120),(210, 120),(x, y)]
 setheading="right"
@@ -40,13 +41,13 @@ while True:
             if event.type == locals.K_DOWN and setheading != "up":
                 setheading="down"
                 ghj=down 
-        if setheading=="right"
+        if setheading=="right":
             x+=30
-        if setheading=="left"
+        elif setheading=="left":
             x-=30
-        if setheading=="down"
+        elif  setheading=="down":
             y+=30
-        if setheading=="up"
+        else：
             y-=30
     x +=30
     # 将背景图画上去