save project

snake.py

@@ -16,6 +16,7 @@ body = pygame.image.load('body.png')
 FPS = pygame.time.Clock()
 
 x,y = 240,120
+pos = [(180,90),(180,120),(210,120),(x,y)]
 
 while True:
     for event in pygame.event.get():
@@ -23,14 +24,15 @@ while True:
             # 接收到退出事件后退出程序
             exit()
     x+=30
+    pos.append((x,y))
+    pos.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))
+    screen.blit(right,pos[-1])
     # 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))
+    for i in range(len(pos)-1):
+        screen.blit(body,pos[i])
     # 将果实画上去
     screen.blit(food, (360, 300))
     # 刷新画面