I was right

来源: 于 2011-08-24 08:16:59 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

I just checked, that the Mac OS 7 was just an upgrade of Mac OS 6, not built on NeXTStep.

http://en.wikipedia.org/wiki/History_of_Mac_OS#System_7

Only Mac OS X were built on top of NeXTStep

http://en.wikipedia.org/wiki/History_of_Mac_OS#Mac_OS_X