並前往https://fang613923.pixnet.net/blog/post/403894799-%E5%A6%82%E4%BD%95%E8%A8%88%E7%AE%97%E9%AB%94%E7%A9%8D%E9%87%8D%E9%87%8F-%2Ahow-to-calculate-volume-weight%2A
