我有这个数组我正在创建一个选择框;然而,这绝对不是一个干净利落的方式。任何人都可以提供一种更简单的方法来写出来吗?
[ [ '0', '0' ],
[ '1', '1' ],
[ '2', '2' ],
[ '3', '3' ],
[ '4', '4' ],
[ '5', '5' ],
[ '6', '6' ],
[ '7', '7' ],
[ '8', '8' ],
[ '9', '9' ],
[ '10', '10' ],
[ '11', '11' ],
[ '12', '12' ],
[ '13', '13' ],
[ '14', '14' ],
[ '15', '15' ],
[ '16', '16' ],
[ '17', '17' ],
[ '18', '18' ],
[ '19', '19' ],
[ '20', '20' ],
[ '21', '21' ],
[ '22', '22' ],
[ '23', '23' ] ]
答案 0 :(得分:5)
Array.new(24){|i| [i.to_s, i.to_s]}