save project

snake.py

@@ -13,17 +13,19 @@ food = pygame.image.load('apple.png')
 body = pygame.image.load('body.png')
 # 创建一个窗口
 x,y = 240,120
+position = [(180,90),(180,120),(210,120),(x,y)]
 while True:
     for event in pygame.event.get():
         if event.type == locals.QUIT:
             exit()
         x += 30
+        position.append((x,y))
+        position.pop(0)
 
     screen.blit(background,(0,0))
-    screen.blit(right,(x,y))
-    screen.blit(body,(210,120))
-    screen.blit(body,(180,120))
-    screen.blit(body,(180,90))
+    screen.blit(right,position[-1])
+    for i in range(len(position)-1):
+        screen.blit(body,position[i])
     
     screen.blit(food,(360,300))
     pygame.display.update()