[文件操作] 批处理如何把文件批量分装到文件夹？

@echo off
setlocal enabledelayedexpansion
cd /d "%~dp0"
set "folder=1001"
set "file=0"
md "%folder%"
for /f "delims=" %%i in ('dir /b /a-d *.mp3 *.m4a') do (
    move /y "%%i" "!folder!"
    set /a file+=1
    if !file! equ 3 (
        set /a folder+=1
        md "!folder!"
        set "file=0"
    )
)
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@echo off
setlocal enabledelayedexpansion
for %%a in (*) do (
if not "%%a"=="%~nx0" (
    set /a n+=1
    set /a "m=(n-1)/30+1"
    if not exist !m! md !m!
    move "%%a" "!m!"
))
pause
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