在ruby中将数组转换为多维哈希的字符串

我真的不知道标题是否正确,但问题很简单：

我有一个价值和一把钥匙.

关键如下：

“一二三”

现在,我该如何设置这个哈希：

params [‘one’] [‘two’] [‘three’] =值

您可以尝试使用此代码执行此操作：

keys = "one.two.three".split '.' # => ["one", "two", "three"]
params = {}; value = 1; i = 0;  # i is an index of processed keys array element
keys.reduce(params) { |hash, key|
    hash[key] = if (i += 1) == keys.length
      value # assign value to the last key in keys array
    else
      hash[key] || {} # initialize hash if it is not initialized yet (won't loose already initialized hashes)
    end
}
puts params # {"one"=>{"two"=>{"three"=>1}}}