a = [1, 2, 3] b = [4, 5, 6]
如何将两个数组合并到一个二维数组中?
[[1, 4], [2, 5], [3, 6]]
尝试使用Array#zip
a.zip(b) => [[1,4],[2,5],[3,6]]
尽管zip显然是最直接的答案,但这种方法也可以:
zip
[a, b].transpose => [[1, 4], [2, 5], [3, 6]]