gawk

@echo off
setlocal enabledelayedexpansion
REM 每个文件夹放多少个
set file=20

set n=0
for /f "delims=" %%a in ('dir /b /a-d g:\test') do (
    if !n! equ 20 (
        set "d=%time:~0,2%%time:~3,2%%time:~6,2%"
        if not exist "!d!" (
            md "!d!"
        )
    )
    for /l %%i in (1,1,20) do (
        move "g:\test\%%~a" "!d!"
        set /a n+=1
    )
)
pause
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