Simple SET not working in batch file

问题

Disclaimer: I'm not a batch files guru, just digging my way with the help of Google and SO. Also note that I'm trying to run this batch file as a Custom Action in SourceTree.

The following simple SET command doesn't seem to assign value to the variable:

SET MYVAR = %1
ECHO "%MYVAR%"
ECHO "!MYVAR!"
ECHO %1 

The first ECHO above returns ""; the second one "!MYVAR!", whereas the last one returns the actual value of command-line parameter. How can I assign value to MVAR?

回答1:

set is sensitive to spaces on each side of the =. You are setting a variable named myvar[Space}

来源：https://stackoverflow.com/questions/36277001/simple-set-not-working-in-batch-file