URL：https://1.bp.blogspot.com/-zWpGJbQmsjc/WA3guPTRR9I/AAAAAAABigI/6h2frqlQHS4CSSsAqmRd6iDbDIfeCrN8ACLcB/s640/%E3%82%A4%E3%83%B3%E3%82%BF%E3%83%BC%E3%83%95%E3%82%A7%E3%82%A4%E3%82%B9%E3%81%A8%E3%81%AF%E4%BD%95%E3%81%8B%EF%BC%9F.gif
掲載元：https://touch-touch-touch.blogspot.com/2016/10/What-is-an-interface.html
