並前往https://tivo168.pixnet.net/blog/post/439459258-%E4%BD%A0%E4%B8%8D%E7%9F%A5%E9%81%93%E7%9A%84excel%E5%86%B7%E7%9F%A5%E8%AD%98-%E5%88%A9%E7%94%A8sumproduct%E9%80%B2%E8%A1%8C%E5%A4%9A%E6%A2%9D