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Compound interest calculation and re-upgrade------------------------------------------------------------Customers under the guidance of the people have more ideas: I often fill in this data ..... Would you please fill it in beforehand? ...... Make the interface simple and beautiful. Can you help me to turn into an app, I put on the mobile phone is more convenient? I think this is very useful, many people may need these features, to do my public number it? Could you please not l

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Reference https://www.zhihu.com/question/20148405/answer/107071448 Http://www.cnblogs.com/indream/p/3602348.html Https://www.liaoxuefeng.com/wiki/001434446689867b27157e896e74d51a89c25cc8b43bdb3000/ 001434501628911140e1cb6ce7d42e5af81480f7ecd5802000 (MVC) Https://www.liaoxuefeng.com/wiki/001434446689867b27157e896e74d51a89c25cc8b43bdb3000/ 001475449022563a6591e6373324d1abd93e0e3fa04397f000 (MVVM) MVC Model-Views (view)-Controller Model-used to