save project

snake.py

@@ -20,12 +20,12 @@ while True:
             exit()
     # 将背景图画上去
     screen.blit(background, (0, 0))
-    # 将贪吃蛇画上去
+    # 将贪吃蛇的头画上去
     screen.blit(right, (240, 120))
     x+=30
-    #将背景图画上去
+    #将果实画上去
     screen.blit(background,(0,0))
-    #将贪吃蛇画上去
+    #刷新画面
     screen.blit(right,(x,y))
     #将贪吃蛇的身体画上去
     screen.blit(body,(210,120))