qixiaobin0715

@echo off
set Letters=1abcdefghijklmnopqrstuvwxyz
setlocal enabledelayedexpansion
for /l %%a in (1,1,26) do set #%%a=!Letters:~%%a,1!
for /d %%i in (*) do (
    set m=0
    set n=5
    for /f "delims=" %%j in ('dir /b /a-d /o-n "%%i\*.*"') do (
        set str=%%~nj
        set str=!str:~1!
        if "!str!" geq "08" (
            set /a m+=1
            for %%x in (#!m!) do ren "%%j" "!str!a!%%x!%%~xj"
        ) else if "!str!" leq "04" (
            set /a n-=1
            for %%y in (#!n!) do ren "%%j" "!str!!%%y!%%~xj"
        )
    )
)
pause
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