摘要: 为了理解什么是Monad,最好需要了解什么是Monoid。这两篇互为姐妹篇,因为Monad的定义是:A monad is just a monoid in the category of endofunctors, what's the problem? what's the problem?其实问 阅读全文
posted @ 2018-03-22 19:38 zzfx 阅读(737) 评论(0) 推荐(0)