URL：https://3.bp.blogspot.com/-WXe2980YGas/WA3fYAgmbfI/AAAAAAABiec/bhQzc6oyOWchRcygb49CQB_2sGhYL5rzACKgB/w1200-h630-p-k-no-nu/%E3%82%B9%E3%82%AF%E3%83%AA%E3%83%BC%E3%83%B3%E3%82%B7%E3%83%A7%E3%83%83%E3%83%88+2016-10-24+19.15.34.png
掲載元：https://touch-touch-touch.blogspot.com/2016/10/What-is-an-interface.html
