如果变数是在作业系统环境中设定，便可当做NMAKE巨集来使用。

If a variable was set in the operating-system environment, it is available as an NMAKE macro.

youdao

如果变数是在作业系统环境中设定，便可当做NMAKE巨集来使用。

If a variable was set in the operating-system environment, it is available as an NMAKE macro.

youdao