c# - __MonoCS__ 在单声道 5.0 中不起作用。如何在编译时确定平台？

Question

此代码在升级到 mono 5.0 后损坏:

#if __MonoCS__ //Linux...
        var mode = LZ4StreamMode.Compress;
#else //Windows...
        var mode = System.IO.Compression.CompressionMode.Compress;
#endif

我可以用什么常量来代替？

Answer 1

this is noted in the release notes for mono 5.0以及推理:

Note: mcs defined the MonoCS symbol and some users incorrectly used it to conditionally compile code specific to Mono. This is considered bad practice and won’t work anymore now that csc is the default compiler. You can detect whether you’re running on Mono at runtime instead.