我在Rails/ActiveSupport中发现了-@操作符的重新定义:
https://github.com/rails/rails/blob/master/activesupport/lib/active_support/duration.rb#L33
你能告诉我这是什么意思吗?
我在Rails/ActiveSupport中发现了-@操作符的重新定义:
https://github.com/rails/rails/blob/master/activesupport/lib/active_support/duration.rb#L33
你能告诉我这是什么意思吗?