如何折叠所有不会在 Visual Studio 中编译的 #ifdefs 块？
问题如下：代码库有许多文件，其中包含使用 #if Defined(...) 指令为每个目标平台有条件编译的多个块。由于典型的程序员主要在其中一种平台上工作，因此即使这些代码块在 Visual Studio 2005 编辑器中呈灰色显示，也很难通过这些大块非活动代码块来读取和导航代码。
让某人了解一种仅折叠未编译但仍存在于源文件中的代码块的功能。
The problem is the following: the codebase have many files with multiple blocks compiled conditionally for each of target platforms using the #if defined(...) directive. Since the typical programmer is working mainly on one of the platforms it is quite hard to read and navigate the code with these large blocks of inactive code blocks even if the code blocks are greyed out in the Visual Studio 2005 editor.
Have someone have an idea of a functionality for collapsing only the blocks of code which are not compiled but still present in the source file.
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据我所知，默认情况下不能折叠不活动的预处理器区域，并且似乎没有提供该功能的扩展。
也就是说，您可以做的是更改非活动预处理器文本的呈现方式（至少在 VS2012 上），这样就不会那么分散注意力，并且实际编译的代码更容易阅读。
尝试这些设置：
默认值为 65，但我发现如果您使用深色主题，则 30 效果更好。
您还可以使用 Visual Studio 2012 颜色主题编辑器，进一步提高可读性（例如，如果您更喜欢 Sublime Text 呈现代码的方式）
As far as I know, you cannot collapse inactive pre-processor regions by default and there doesn't seem to be an extension that provides the functionality.
That said, what you can do is change how inactive pre-processor text is rendered (at least on VS2012), so it is less distracting and so that the code that is actually compiled is easier to read.
Try these settings:
The default is 65, but I find 30 works better if you use the dark theme.
You can also further tweak the colours with the Visual Studio 2012 Color Theme Editor, to further increase readability (for example, if you prefer the way Sublime Text renders your code)