when
system.
hostOS == "windows": echo "Windowsで動かしていますね!"
elif
system.
hostOS == "linux": echo "Linuxで動かしていますね!"
elif
system.
hostOS == "macosx": echo "Mac OS Xで動かしていますね!"
else:
echo "私の知らないオペレーション・システムです"
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