並前往https://cantor.math.ntnu.edu.tw/wp-content/uploads/2021/07/2021%E9%80%9A%E8%A8%8A%E5%A4%A7%E8%B3%BD%E7%AB%B6%E8%B3%BD%E8%A6%8F%E7%A8%8B.pdf