一些很好的例子使用枚举 [英] Some good example for using enums

问题描述

我学到枚举当我得知C和时不时我让自己提醒一下，大部分时间由某些源重新阅读，它发生，我认为这是由于这一事实，我从来没有使用它在我的节目，我的编程兴趣集中围绕算法解决问题的，所以我不知道在那里我可不可以用枚举。

I learned enums when I learned C and from time to time I keep myself reminding about it and most of the time by re-reading from some source,it occurred to me that this is due to the fact I never use it in my programming,my programming interest concentrate around algorithmic problem solving so I am not sure where could I possibly use enums.

可能有人提出了一些很好的例子，用枚举是让事情变得更容易？

Could somebody suggest some good example where using enums is makes things much easy?

我想AP preciate算法的例子，但两者的算法或者非算法的例子是值得欢迎的。

I would appreciate algorithmic examples but both of algorithmic or non-algorithmic examples are welcome.

推荐答案

试想一下，你正在编写深度优先搜索，你想与他们是否是树，后退，前进，或交叉标记您的边缘。你可以创建具有四种可能性枚举EDGE_TYPE并用它来标记您的边缘。

Imagine that you are programming a depth first search and you want to tag your edges with whether they are tree, back, forward, or cross. You could create an enum EDGE_TYPE with the four possibilities and use it to tag your edges.

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