所有字母小写，除了句子中的第一个单词

Question

我有一个字符串

s = "Test TEst TEST. Test. TEST. TEST. Test test test."

我需要使结果像这样

s = "Test test test. Test. Test. Test. Test test test."

我如何在ruby上做到这一点？

THX。

Answer 1

s =  "Test TEst TEST. Test. TEST. TEST. Test test test."
p s.split('. ').map(&:capitalize).join('. ')
#=> "Test test test. Test. Test. Test. Test test test."

Answer 2

s.gsub(/\w[^.]*/, &:capitalize)
# => "Test test test. Test. Test. Test. Test test test."