The way I learned design patterns is by writing lots of really terrible software. When I was about 12, I have no idea what was good or bad. I just wrote piles of spaghetti code. Over the next 10 years or so, I learned from my mistakes. I discovered what worked and what didn't. I independently invented most of the common design patterns, so when I first heard what design patterns were, I was very excited to learn about them, then very disappointed that it was just a collection of names for things that I already knew intuitively. (that joke about teaching yourself C++ in 10 years isn't actually a joke)

这个故事的寓意是:编写大量的代码。就像别人说的，练习，练习，再练习。我认为，在您了解当前的设计为什么不好并寻找更好的方法之前，您不会很好地了解在哪里应用各种设计模式。设计模式书应该为您提供完善的解决方案和与其他开发人员讨论的通用术语，而不是对您不理解的问题的粘贴解决方案。

我的建议是组合实现其中的一些，并分析它们的一些实现。例如，在. net中，如果您查看数据适配器，就会发现有一些适配器模式的使用，如果稍微深入研究框架，还会发现其他一些适配器模式。

The way I learned design patterns is by writing lots of really terrible software. When I was about 12, I have no idea what was good or bad. I just wrote piles of spaghetti code. Over the next 10 years or so, I learned from my mistakes. I discovered what worked and what didn't. I independently invented most of the common design patterns, so when I first heard what design patterns were, I was very excited to learn about them, then very disappointed that it was just a collection of names for things that I already knew intuitively. (that joke about teaching yourself C++ in 10 years isn't actually a joke)

这个故事的寓意是:编写大量的代码。就像别人说的，练习，练习，再练习。我认为，在您了解当前的设计为什么不好并寻找更好的方法之前，您不会很好地了解在哪里应用各种设计模式。设计模式书应该为您提供完善的解决方案和与其他开发人员讨论的通用术语，而不是对您不理解的问题的粘贴解决方案。

对于这样一个老问题，我只有两分钱

有些人已经提到，实践和重构。我认为学习模式的正确顺序是:

学习测试驱动开发(TDD) 学习重构 学习模式

大多数人忽略了1，许多人相信他们可以做2，几乎每个人都直接去做3。

对我来说，提高软件技能的关键是学习TDD。这可能是一个痛苦而缓慢的编码过程，但首先编写测试肯定会让您对代码进行很多思考。如果一个类需要太多样板文件或者很容易崩溃，你很快就会注意到不好的味道

TDD的主要好处是你不再害怕重构你的代码，并迫使你编写高度独立和内聚的类。如果没有一套好的测试，触摸没有损坏的东西就太痛苦了。有了安全网，你将真正冒险对你的代码进行巨大的更改。这是你真正开始从实践中学习的时刻。

Now comes the point where you must read books about patterns, and to my opinion, it is a complete waste of time trying too hard. I only understood patterns really well after noticing I did something similar, or I could apply that to existing code. Without the safety tests, or habits of refactoring, I would have waited until a new project. The problem of using patterns in a fresh project is that you do not see how they impact or change a working code. I only understood a software pattern once I refactored my code into one of them, never when I introduced one fresh in my code.

你试过《四人帮》这本书吗?

设计模式:可重用面向对象软件的元素

我认为您需要检查一些您作为开发人员遇到过的问题，当您因为另一个设计更改而不得不第十次修改代码时，您会感到非常紧张。你可能有一个项目清单，你觉得有很多返工和痛苦。

From that list you can derive the scenarios that the Design Patterns intend to solve. Has there been a time where you needed to perform the same series of actions on different sets of data? Will you need to be able to future capability to an application but want to avoid reworking all your logic for existing classes? Start with those scenarios and return to the catalog of patterns and their respective problems they are supposed to solve. You are likely to see some matches between the GoF and your library of projects.