save project

snake.py

@@ -15,6 +15,7 @@ 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():
@@ -22,15 +23,15 @@ while True:
             # 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))
     
-    screen.blit(right, (x, y))
-    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))
+    screen.blit(right,position[-1])
     # 刷新画面
+    for i in range(len(position)-1):
+        screen.blit(body,position[i])
+    screen.blit(food, (360, 300))
     pygame.display.update()
     FPSCLOCK.tick(3)
\ No newline at end of file