wutarnow

@echo off
setlocal enabledelayedexpansion
set /p ch=按字母顺序输入两个字母: 
set result=这两个字母中间是:
set table=a b c d e f g h i j k o m n o p q r s t u v w x y z
for %%I in (%table%) do (
    if /i %%I GTR %ch:~1,1% goto Finish
    if /i %%I GEQ %ch:~,1% set result=!result! %%I
)
:Finish
echo %result%
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