並前往http://ms3.cges.ntct.edu.tw/dyna/data/user/family105/files/%E8%AA%B2%E7%A8%8B%E8%88%87%E6%B4%BB%E5%8B%95/4-3%E4%B8%80%E5%B9%B4%E7%B4%9A%E7%B9%AA%E6%9C%AC%E6%95%99%E6%A1%88.pdf