循环变量递加

@echo off


:htd_choice
echo.
echo  选择 Apache 版本
SetLocal EnableDelayedExpansion
set /a b=0
for /D %%a in (*) do (
    set /a b=b+1
    set htd_0!b!=%%a
    echo   !b!  -  %%a
)


echo %htd_01%
Endlocal
pause

rem set htd01=2.4.4-VC9-x64
rem set htd02=2.4.20-VC14-x64

:htd_choice
echo.
echo  选择 Apache 版本
echo   1  -  Apache %htd01% (推荐)
echo   2  -  Apache %htd02%
echo.
set input=
set /p input= -^> 请选择: 
if @%input%==@1 set htd_path=%htd01%
if @%input%==@2 set htd_path=%htd02%
if @%input%==@ goto htd_choice

echo %htd_path%

pause
exit
setlocal

cd /d %~dp0
set apache_dir=%cd%
set path=%path%;%apache_dir%\bin;

rem httpd -k install -f "%apache_dir%\conf\httpd.conf"         
rem 用默认配置安装
httpd -k install 

endlocal

pause

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