在文件中搜索关键字并在Clojure中找到它的值(Search keyword in a file and find it's value in Clojure)

 这通常会使组件成组时更容易移动/处理。 
 
 在某种程度上，它更符合逻辑，与物理世界相似。 
 
 让我们说大胆的单词是容器，斜体是组件（粗体斜体单词是......容器和组件）。 现在，如果你试图描述一个书架 ：它在一个房子里 ，一个房间里 ， 一边 ，它有多个架子，每个架子里都有一些书或东西 。 并且每个通常相对于其容器放置。 
 
 如果你想找一本书，它就在书架上。 如果要移动书架，则包含的每个组件将同时移动。 听起来很明显，对吧？ 
 
 当然，可以使用更少的容器。 我们看到一个房间里有书 。 它们与以前处于同一位置，但我们认为它们不再位于书架容器中。 
 
 房间里还有书。 他们仍然在同一个地方，他们仍然表现得像书。 
 
 如果，当你试图移动书架时，书籍和东西会悬浮在他们旧位置的空中吗？ 好吧，如果您不使用这些容器，那可能会发生什么。 

That usually make it easier to move/process as your components are in groups.
 
And in some way, it's more logical and similar to the physical world.
 
Let's say bold words are containers and italics are components (and bold italic word are... containers and component). Now if you try to describe a bookshelf: it' in a house, in a room, on a side, it has multiple shelves and each shelf contains some books or stuff. And each one is normally put relatively to its container.
 
If you wan to locate a book, it's in the bookshelf. If you want to move the bookshelf, each components contained will be moved simultaneously. That sounds pretty obvious, right?
 
Of course, it's possible to use less containers. We saw a room contains books. They are in the same spot as before but we decide they are not in the bookshelf container any more. 
 
The room still contains books. They still are at the same location and they still behave like books.
 
Will it sound right if, when you attempt to move the bookshelf, books and stuff stay floating in the air at their old location? Well, that's probably what would happen if you don't use those containers.