
CODE: [Copy to clipboard]@echo off&setlocal enabledelayedexpansion
call :sub aa=33 44
echo 33 + 44 = %aa%
pause
goto :eof
:sub
@echo off&setlocal enabledelayedexpansion
set/a num=%2+%3
(
endlocal
set %1=%num%
goto :eof
)
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