獲取當前操作系統的最佳方式是什麼？

Question

我正在尋找類似於python的sys.platform，它返回'linux'，'windows'等，甚至更好的東西，就像python的平臺模塊，它給你的操作系統，發行版本，發行版本等。

Answer 1

when defined windows: 
    echo "I'm on Windows!" 
elif defined linux: 
    echo "I'm on Linux!" 
else: 
    echo "I'm on some other platform!" 

when defined x86: 
    echo "x86 specific code!" 
elif defined amd64: 
    echo "amd64 specific code!" 
else: 
    echo "generic code!" 

when (NimMajor,NimMinor,NimPatch) > (0,10,2): 
    echo "Such a modern Nim version!" 

echo "OS: ", hostOS, ", CPU: ", hostCPU, ", cpuEndian: ", cpuEndian, ", NimVersion: ", NimVersion 

我的系統上打印此：

I'm on Linux! 
amd64 specific code! 
Such a modern Nim version! 
OS: linux, CPU: amd64, cpuEndian: littleEndian, NimVersion: 0.10.3