https://blog.wongcw.com/2020/10/24/%e8%98%8b%e6%9e%9c%e8%ad%a6%e5%91%8a%e7%a8%b1magsafe%e5%85%85%e9%9b%bb%e5%99%a8%e5%8f%af%e8%83%bd%e6%9c%83%e5%9c%a8%e7%9a%ae%e9%9d%a9%e4%bf%9d%e8%ad%b7%e6%ae%bc%e4%b8%8a%e7%95%99%e4%b8%8b%e5%9c%93/