@echo off
for %%a in (*.*) do (
if "%%~nxa" neq "%~nx0" (
set "name=%%~na"
setlocal enabledelayedexpansion
set name1=!name!
call :lp
ren "!name!%%~xa" "!nam!%%~xa"
set "nam="
endlocal
)
)
pause
:lp
if defined name1 (
set "var=!name1:~,1!"
if "!var!" leq "Z" (
if "!var!" geq "a" (
set "nam=!nam!!var!"
))
set "name1=!name1:~1!"
goto lp
)

@echo off
set "code=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"
for /f "delims=" %%a in ('dir /s /a-d /b') do (
if "%%~nxa" neq "重命名.bat" (
set "str=%%~na"&set "file=%%a"&set "var=%%~na"
setlocal enabledelayedexpansion
for %%i in (%code%) do set "str=!str:%%i=!"
set "str=!str: =!"&call :lp
ren "!file!" !files!%%~xa
endlocal
))
goto :eof
:lp
set /a n+=1
for /f "tokens=%n% delims=%str% " %%a in ("%var%") do (
if "%%a" neq "" set "files=!files!%%a"&goto lp
)

@echo off&cls
for /f "tokens=*" %%i in ('dir /b/a-d "*.*"') do (
if "%%~nxsi" neq "%~nxs0" (
set "舊文件名=%%~nxsi"&set "文件名串=%%~ni"&set "新文件名="&set "counter=0"
del ~filenamechar.lst /q>nul 2>&1
setlocal enabledelayedexpansion
call :split
for /f "tokens=*" %%n in ('findstr "[a-z]" ~filenamechar.lst') do set "新文件名=!新文件名!%%n"
if "!新文件名!" neq "" (
echo ren !舊文件名! !新文件名!%%~xi
) else (
echo ^(文件"!舊文件名!"不含字母,不能重命名.^)
)
endlocal
)
)
del ~filenamechar.lst /q>nul 2>&1
pause&goto :eof

:split
if "!文件名串:~%counter%,1!" neq "" (
if "!文件名串:~%counter%,1!" neq " " echo !文件名串:~%counter%,1!>>~filenamechar.lst
set /a counter+=1
goto split
)
goto :eof