悠悠博客 (讨论区存档) — 技术永无止尽，未来事在人为

如何得到下面组合

aa =[1,2,3,4,6]
给定一个数组
得到其任意组合
[1], [2], [1, 2], [3], [1, 3], [2, 3], [1, 2, 3], [4], [1, 4], [2, 4], [1, 2, 4], [3, 4], [1, 3, 4], [2, 3, 4], [1, 2, 3, 4],
[6], [1, 6], [2, 6], [1, 2, 6], [3, 6], [1, 3, 6], [2, 3, 6], [1, 2, 3, 6], [4, 6], [1, 4, 6], [2, 4, 6], [1, 2, 4, 6], [3, 4, 6], [1, 3, 4, 6], [2, 3, 4, 6], [1, 2, 3, 4, 6]

谢谢