Simple Code! 简洁编码
Playing football is very simple, but playing simple football is the hardest thing there is. — Johan Cruyff
踢足球非常简单，但踢简单的足球是最难的事情。— Johan Cruyff
If we take this famous quote for programming, we can say;
如果我们把这句名言用于编程，我们也可以说：
Writing code is very simple, but writing simple code is the hardest thing there is. — ???
写代码非常简单，但是写简单代码是最难的事情。— ???
In this document, we will introduce simple rules, those are easy to implement.
在本书中，我们将会介绍简单规则，且这些规则很容易实现。
Once your application grows, it will be hard to follow these rules. Sometimes you find breaking rules will save you time in
a short term. However, the saved time in the short term will bring much more time loss in the middle and long term. Your
code base becomes complicated and hard to maintain. Most of the business applications are re-written just because you can't maintain it anymore.
一旦你的应用程序增长起来，你很难遵循这些规则。有时你会发现破坏规则在短期内会为你节省时间。然而，短期内节省的时间将会在中期和长期带来更多的时间损失。你的代码库变得复杂且难以维护。大多数商业应用程序被重新编写，只是因为你无法再维护它。
If you follow the rules and best practices, your code base will be simpler and easier to maintain. Your application reacts to changes faster.
如果你遵循这些规则和最佳实践，你的代码库将更简单且更容易维护。你的应用程序也能更快的应对变化。