C＃预处理程序区分操作系统 [英] C# preprocessor differentiate between operating systems

问题描述

是否可以使用预处理器在 C＃中区分操作系统？像这样：

Is it possible to differentiate between operating systems in C# using preprocessor? like :

#if OS_WINDOWS
//windows methods
#elif OS_MAC
//mac  methods
#elif OS_LINUX
//linux methods
#endif

推荐答案

您所要求的是可能的，但需要一些工作。

What you are asking for is possible but needs a bit of work.

1. 在 csproj

<PropertyGroup Condition=" '$(OS)' == 'Windows_NT' ">
  <DefineConstants>_WINDOWS</DefineConstants>
</PropertyGroup>

在代码中使用它

Use that in your code

#if _WINDOWS
  // your windows stuff
#else
  // your *nix stuff
#endif

当您拥有依赖于操作系统（例如本机库名称）

I find this technique useful when you have constants that are dependent on the OS (for example native library names)

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