save project

snake.py

 import pygame
 from pygame import locals
 x,y=240,120
+x1,y1=210,120
+x2,y2=180,120
+x3,y3=180,90
 # 初始化pygame，为使用硬件做准备
 pygame.init()
 
@@ -13,21 +16,25 @@ background = pygame.image.load('bg.png')
 right = pygame.image.load('right.png')
 food = pygame.image.load('apple.png')
 body = pygame.image.load('body.png')
-
+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+=3
+    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))
+    screen.blit(right, position[-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(position)-1):
+        screen.blit(body,position[i])
+    screen.blit(body,position[-2])
+    screen.blit(body,position[-3])
+    screen.blit(body,position[-4])
     # 将果实画上去
     screen.blit(food, (360, 300))
     # 刷新画面