勾股收納盒摺製方式:
https://www.youtube.com/watch?v=EDAvsc3leqg&list=PLt0k-meWzUyM8KGCE4RMAs8V37BDwa6L&index=97
https://www.youtube.com/watch?v=oPlHj_-uN7I&list=PLt0k-meWzUyM8KGCE4RMAs8V37BDwa6L&index=99