terse

@echo off & setlocal enabledelayedexpansion
for /d %%a in (*) do (
    set n=10000
    for /f "delims=" %%i in ('dir /b /a-d "%%a\*.*"') do (
        set /a n+=1
        ren "%%a\%%i" "%%a!n:~1!%%~xi"
    )
)
pause
复制代码