禁用部分代码的简单方法 [英] Simple ways to disable parts of code

问题描述

这不是解决特定问题的典型问题，而是脑力锻炼，但我想知道是否有人有解决方案.

This isn't a typical question to solve a specific problem, it's rather a brain exercise, but I wonder if anyone has a solution.

在开发中，我们通常需要禁用或切换代码的​​某些部分以检查不同的方法.为此，我们使用注释或 #defines ，但我最喜欢的是:

In development we often need to disable or switch some parts of code to check different approaches. To do this we use comments or #defines, but my favorite is:

//*
[code here]
//*/

现在，仅删除第一个斜杠时，代码将被注释掉.

Now when you remove just the first slash the code will become commented-out.

问题:有什么方法可以实现类似的 if-else 代码切换?我试图找到它，但是我总是遇到一些问题，找不到可行的解决方案.

The question: is there any way to implement similar if-else code switch? I tried to find it but I always had some problem and couldn't find a working solution.

也许您知道任何类似的把戏吗?

And maybe do you know any similar tricks?

推荐答案

我不确定是否应该发布此内容，因为它不是我认为的好代码"，但是我承认使用了以下技术当我刚签出某项内容时，一种可以在两个小代码段之间快速切换的快速n肮脏的方式:

I'm not sure I should post this because it's not something I think is 'good code', but I'll admit to having used the following technique as a quick-n-dirty way to be able to quickly switch between two small snippets of code when I'm just checking something out:

// in the following , foo() is active:
/**/ foo(); /*/ bar(); /**/

现在只需删除前面的星号之一

Now just remove one of the asterisks at the front:

// now bar() is active:
/*/ foo(); /*/ bar(); /**/

当然，这绝不应该超过仅仅检查一下内容"阶段...

Of course, this should never make it past the "just checking things out" phase...

这篇关于禁用部分代码的简单方法的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！