keen

有点复杂：

@echo off&setlocal enabledelayedexpansion
set str=abcdefghijklmnopqrstuvwxyz
set /p var=please input:
:lp
set v=%var:~0,1%
set /a c+=1
set n=0
:loop
set r=!str:~%n%,1!
set /a n+=1
if /i "%v%"=="%r%" set s%c%=%n% &goto next
goto loop
:next
set var=%var:~1%
if "%var%"=="" goto end
goto lp
:end
for /l %%i in (%c% -1 1) do set /a s+=!s%%i!
echo %s%
pause
复制代码

[ 本帖最后由 keen 于 2009-4-1 15:49 编辑 ]