@echo off
title code by 523066680 @ cn-dos.net
if not exist *.jpg (echo,不存在jpg文件&pause>nul&exit)
setlocal enabledelayedexpansion
::判断文件数位数,决定名字前面补0的最大个数.文件数不能多于9位数.
for %%a in (*.jpg) do set /a a+=1
set "a=%a%987654321" & set "o=0000000000"
set /a k=0
::避免重命名同名冲突
ren *jpg *.jpg#
for /f "tokens=*" %%a in ('dir *.jpg# /b') do (
  set /a k+=1
  set name=%o%!k!
  ren "%%a" "0!name:~-%a:~9,1%!.jpg"
  echo,0!name:~-%a:~9,1%!
)
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