並前往http://ruby19870620.pixnet.net/blog/post/335783168-%5B%E8%82%B2%E5%85%92%5D%E8%88%92%E6%9C%8D%E5%9D%90%E6%9C%88%E5%AD%90~%E5%BD%8C%E6%9C%88%E6%88%BF-%E4%BF%A1%E7%BE%A9%E9%A4%A8-20%E5%A4%A9