批处理创建多级文件夹

@echo off
set "prefix=test"
for /l %%a in (1 1 3) do (
    for /l %%b in (1 1 3) do (
        for /l %%c in (1 1 3) do (
            md "%prefix%\%prefix%%%a\%prefix%%%a_%%b\%prefix%%%a_%%b_%%c" 2>nul
        )
    )
)
pause
exitCOPY

@echo off
cd /d "%~dp0"
set prefix=test
set delims=_
@REM 目录深度 level
set level=2
@REM 每层建立文件夹数量 dirnum
set dirnum=3
 
call :mdfoo "%prefix%" 0
exit /b
 
:mdfoo pre n
setlocal
if %~2 geq %level% (
  2>nul md %1
  goto end
)
set /a n=%~2+1
for /l %%A in (1,1,%dirnum%) do (
  call :mdfoo "%~1\%~nx1%delims%%%A" %n%
)
:end
endlocal
exit /bCOPY

$prefix = 'test'
$delims = '_'
# @REM 目录深度 level
$level = 2
# @REM 每层建立文件夹数量 dirnum
$dirnum = 3
function mdfoo {
  param (
    [string]$Path,
    [int]$Level
  )
  if ($Level -le 0) {
    New-Item -Path $Path -ItemType Directory -Force
    return
  }
  for ($i = 1; $i -le $dirnum; $i++) {
    mdfoo -Path (Join-Path -Path $Path -ChildPath "$(Split-Path -Path $Path -Leaf)$delims$i") -Level ($Level - 1)
  }
}
mdfoo -Path $prefix -Level $levelCOPY