Try this Batch file, I think it is an adequate solution for this problem:
@echo off
echo Select a folder. Terminate folder number with + to open it.
echo/
call :SelectFolder selectedFolder
echo/
echo Selected folder: %selectedFolder%
goto :EOF
:SelectFolder returnVar
setlocal EnableDelayedExpansion
:nextFolder
echo/
echo %cd%
set i=0
set folder[0]=..
echo 0- ..
for /D %%d in (*) do (
set /A i+=1
set folder[!i!]=%%d
echo !i!- %%d
)
:getOption
set option=0+
set openFolder=1
set /P "option=Enter the desired folder: "
if "%option:~-1%" equ "+" (
set option=%option:~0,-1%
) else (
set openFolder=
)
if %option% gtr %i% goto getOption
cd "!folder[%option%]!"
if defined openFolder goto nextFolder
endlocal & set %1=%cd%
exit /B