中国DOS联盟

::将一个十六进制的数转换成十进制
@echo off
if "%1"=="/?" goto :explain
if "%1"=="" goto :explain
setlocal enabledelayedexpansion
set ver=%1
set temp=!ver!
set num=1

:label

set temp%num%=%temp:~1%
if not defined temp%num% goto :next
set temp=!temp%num%!
set /a num+=1
goto :label

:next

echo %num%
if %num% GEQ 6 echo Out of data! & pause>nul & exit
::===================================================
set TEMP=!ver:0,-1! & set snum=0 & set change=1
echo %TEMP%
echo %ver%
echo %TEMP:~-1%
::问题在此处，%TEMP:~-1% 没法读到倒数第一位，为什么？
::===================================================
for /l %%j in (1,1,%num%) do (
ping -n 1 127.0.0.1 >nul
echo !TEMP:~-1!
set /p var=%%j:
if "!TEMP:~-1!"=="a" set /a snum=snum+10*change & goto :else
if "!TEMP:~-1!"=="b" set /a snum=snum+11*change & goto :else
if "!TEMP:~-1!"=="c" set /a snum=snum+12*change & goto :else
if "!TEMP:~-1!"=="d" set /a snum=snum+13*change & goto :else
if "!TEMP:~-1!"=="e" set /a snum=snum+14*change & goto :else
if "!TEMP:~-1!"=="f" set /a snum=snum+15*change & goto :else
set /a snum=snum+!TEMP:~-1!*snum
set TEMP=!TEMP:~0,-1!

:else
set /a change=!change!*16
echo ===========!change!
echo ============!snum!
)
echo %1的转换结果是%snum%
pause>nul&goto :eof

:explain

cls&echo.&echo.
echo =====================================================
echo.
echo 十六进制向十进制转换
echo.
echo ——writed by Liuzl
echo.
echo.
echo 按任意键退出......
echo.
echo =====================================================
pause>nul&exit
::哪位高手能帮解决，感激不尽！

干吗要这样复杂呀？
十六进制的数转换成十进制

echo off
cd.>十进制.txt
setlocal EnableDelayedExpansion
for /f %%a in (1.txt) do (
set s=%%a
set /a s=0x!s!
set /p=!s! <nul >>十进制.txt
)

谢谢了，初学不是很清楚