save project

snake.py

@@ -14,28 +14,30 @@ food = pygame.image.load('apple.png')
 body = pygame.image.load('body.png')
 x = 240
 y=120
-posttion=[(180,90),(180,120),(210,120),(x,y)]
+soo=[(180,90),(180,120),(210,120),(x,y)]
 shan=pygame.time.Clock()
 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()
+    soo.append((x,y))
+    soo.pop(0)
     x=x+30
+
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇画上去
     screen.blit(right, (x, y))
     # 将贪吃蛇的身体画上去
-    for i in range(len(posttion)-1):    
-        screen.blit(body,posttion[i])
-
+    for i in range(len(soo)-1):
+        screen.blit(body,soo[i])
     '''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
-    shan.tick(3)
     pygame.display.update()
+    shan.tick(3)
    
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