批处理文件中的设置与cmd.exe之间有区别吗？

Question

In my certain circumstance an executable I run with

set VAR1=SOMEVAR && process.exe

Does not work. However, a batch file with

set VAR1=SOMEVAR

works by running it like:

setvar.bat && process.exe

It has been verified process.exe does run in both cases.

The exe I'm using is bacwi.exe and the sourceforge page mentions

"bvlc.bat batch file configures environment variables to use BACnet/IP port 47809 for any subsequent BACnet tools run from that command prompt window, and enables the BBMD Foreign Device Registration."

Answer 1

Are you aware that the first example would include the space between R and && in the value assigned, but the second would not? Given the generality of your question, and your explicit problem description does not work, you're crossing into crystal-ball territory