save project

snake.py

@@ -12,21 +12,26 @@ background = pygame.image.load('bg.png')
 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
+               # 接收到退出事件后退出程序
             exit()
+    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, (240, 120))
+    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))
-    # 将果实画上去
+    
+    for i in range(len(position)-1):
+        screen.blit(body,position[i])
+    #将果实画上去
     screen.blit(food, (360, 300))
     # 刷新画面
-    pygame.display.update()
\ No newline at end of file
+    pygame.display.update()
+    FPSCLOCK.tick(3)
\ No newline at end of file