save project

snake.py

@@ -11,20 +11,27 @@ right=pygame.image.load("right.png")
 food=pygame.image.load("apple.png")
 body=pygame.image.load("body.png")
 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:
             #接收到退出事件后退出程序
             exit()
-    x+=30        
+
+
+    x+=30
+    position.append((x,y))
+    position.pop(0)        
     #将背景图画上去        
     screen.blit(background,(0,0))
     #将贪吃蛇画上去
     screen.blit(right,(x,y))
+    for i in range(len(position)-1):
+        screen.blit(body,position[i])
     #将贪吃蛇的身体画上去
-    screen.blit(body,(210,120)) 
-    screen.blit(body,(180,120))  
-    screen.blit(body,(180,90))
+    #screen.blit(body,(210,120)) 
+    #screen.blit(body,(180,120))  
+    #screen.blit(body,(180,90))
     #将果实画上去
     screen.blit(food,(360,300))
     #刷新画面