[系统相关] [原创]批处理实现系统文件命名大小写标记

@echo off&setlocal enabledelayedexpansion

set #small=a b c d e f g h i j k l m n o p q r s t u v w x y z
set #big=A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

:loop
set tm=!time:~-5!&if "!tm!" gtr "00.10" (
        set/atm=16000-1!tm:.=!&set tm=000!tm!
        title count down:  !tm:~-4,2!.!tm:~-2!  S & goto:loop
)else (
        title count down:  !tm!  S
)

if "%~1"=="" (set dir=)else set "dir="%~1""
if "%~2"=="" (set file=*)else set "file=%~2"
dir/a/b/s %~1.\?.?
for /r %dir% %%a in ("%file%")do if "%%~a" neq "%~0" (
        set "$tnx=%%~nxa"
        set #1=!$tnx:~0,1!!$tnx:~-1!
        set ##=!#1!&for %%? in (%#big%)do set "##=!##:%%?=%%?!"
        set $t1=!##:~0,1!&set $t2=!##:~-1!
        set #1=!$tnx:~1,-1!
        set ##=!#1!&for %%? in (%#small%)do set "##=!##:%%?=%%?!"
        set $t=!##!
        (ren "%%~a" "!$t1!!$t!!$t2!"2>nul
        type "%%~a">"%%~a.###"2>nul
        del/a/f/q "%%~a" 2>nul
        ren "%%~a.###" "!$t1!!$t!!$t2!"2>nul)||echo %%a
)

if "%~0" neq "%~n0" pause
goto:eof
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