批处理 大小写转换

@ECHO OFFSET "UP=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 "DOWN=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 STR="falfFDFvlSDF.SDFckGmsSDFz;lJf ehmKsd"::需要引号包含否则无法传入空格分号ECHO 原始字符串: %STR%CHOICE /N /C UD /M "转换大写 U, 转换小写 D："IF ERRORLEVEL 2 ( CALL :DOWNCASE %STR% RESULT ) ELSE (IF ERRORLEVEL 1 CALL :UPCASE %STR% RESULT)ECHO 转换后字符串: %RESULT%PAUSEGOTO :EOF:UPCASEECHO UPCASESETLOCAL ENABLEDELAYEDEXPANSIONSET $=&SET "#=%~1"ECHO %#%IF DEFINED # (FOR %%A IN (%UP%) DO SET #=!#:%%A=%%A!)ENDLOCAL&SET "%~2=%#%"&EXIT/B:DOWNCASEECHO DOWNCASESETLOCAL ENABLEDELAYEDEXPANSIONSET $=&SET "#=%~1"IF DEFINED # (FOR %%A IN (%DOWN%) DO SET #=!#:%%A=%%A!)ENDLOCAL&SET "%~2=%#%"&EXIT/B