Ruby按字母排序数组[关闭]

Question

我有Array，其中包含混合数据。

就像是

["AB_1020", "AB_950", "AB_50", "1000", "570"]

输出应该是

AB_50, AB_950, AB_1020, 570, 1000

Answer 1

["AB_1020", "AB_950", "AB_50", "1000", "570"].sort_by do |k|
  i, w = k.split('_').rotate
  [w.to_s, -i.to_i]
end.reverse
#⇒ ["AB_50", "AB_950", "AB_1020", "570", "1000"]

Answer 2

你可以做这样的事情

p ["AB_1020", "AB_950", "AB_50", "1000", "570"].partition{|x| x.to_i.zero? }
      .flat_map{|x| x.sort_by {|x|x[/d+/]}.reverse}

产量

#⇒ ["AB_50", "AB_950", "AB_1020", "570", "1000"]