save project

snake.py

@@ -20,16 +20,18 @@ while True:
         if event.type == locals.QUIT:
             # 接收到退出事件后退出程序
             exit()     
-    # 将背景图画上去
-    screen.blit(background, (0, 0))
+    
+    position.append
+    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, 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
-    screen.blit(food, (360, 300))
+    for i in range(len(position)-1):        
+      screen.blit(body, position[i])
     # 刷新画面
     pygame.display.update()
     FPSCLOCK.tick(3)