https://blog.wongcw.com/2020/10/18/%e8%98%8b%e6%9e%9c%e6%96%b0magsafe%e5%85%85%e9%9b%bb%e5%99%a8%e5%92%8c%e6%89%8b%e6%a9%9f%e6%ae%bc%e9%96%8b%e5%a7%8b%e9%80%81%e9%81%94%e5%ae%a2%e6%88%b6%e6%89%8b%e4%b8%ad/