@echo off

cd /d G:\ZL\DownLoad\JD_Pics_Collection
echo %cd%

for %%i in (*.*) do (ren %%i head%%i)
rem 为了调试方便，本次运行前，先把上次的运行结果前面加个“head”前缀

ren headfile_type_list.txt file_type_list.txt


setlocal enabledelayedexpansion

for /f %%i in (file_type_list.txt) do (
    echo %%i
    set /a count=0
    set file_type=%%i
    for %%j in (*.!file_type!) do (
    echo %%j
    set /a count+=1

    set cond1=ren "%%j" !file_type!-00!count!.!file_type! & echo "%%j" --^> !file_type!-00!count!.!file_type!
    set cond2=ren "%%j" !file_type!-0!count!.!file_type! & echo "%%j" --^> !file_type!-0!count!.!file_type!
    set cond3=ren "%%j" !file_type!-!count!.!file_type! & echo "%%j" --^> !file_type!-!count!.!file_type!

    if !count! LSS 10 (!cond1!) else (if !count! LSS 100 (!cond2!) else (!cond3!))
    )
)

PAUSE
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for /f "delims=" %%j in ('dir /a-d-h /b *.!file_type!')
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@echo off
for %%i in (gif jpg webp) do (
    setlocal enabledelayedexpansion
    for /f "delims=" %%j in ('dir /b /a-d "*.%%i"') do (
        set /a n+=1
        set m=00!n!
        set m=!m:~-3!
        ren "%%j" "%%i-!m!.%%i"
    )
    endlocal
)
pause
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@echo off
setlocal enabledelayedexpansion
set n=1
echo,!n!

setlocal enabledelayedexpansion
set n=8
echo,!n!
endlocal

echo,!n!
pause
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