523066680

虽然不见得好，做了就贴上来了,0123456789abcde 字符截取，这一块是抄学的。

@echo off
setlocal enabledelayedexpansion
set str=0123456789abcdef

call :lp 10 2
echo %num%
call :lp 10 8
echo %num%
call :lp 10 16
echo %num%
pause

:lp
 set "num="
 :in
 set /a x=%1/%2,y=%1 %% %2
 set num=!str:~%y%,1!%num%
 if %x% neq 0 (call :in %x% %2) else (goto :eof)
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