0829

https://www.zhihu.com/question/20011323/answer/119365301

https://www.zhihu.com/question/49877555/answer/118231844

https://zhuanlan.zhihu.com/p/22049799

https://www.zhihu.com/question/48996257#answer-43257951

http://www.aliued.cn/2010/11/07/expression-of-state-and-action-in-ui-design.html

https://www.zhihu.com/question/20011352#answer-43217238

https://zhuanlan.zhihu.com/p/22074067

https://www.zhihu.com/question/47908341#answer-42684118

https://zhuanlan.zhihu.com/p/22154411

https://www.zhihu.com/question/23819007#answer-38194991

https://zhuanlan.zhihu.com/p/22165862

https://www.douban.com/note/329854355/