hanyeguxing

@echo off
set /p a=开始:
set /p b=终止:
for %%a in (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) do (
	if "%%a"=="%a%" set c==
	if defined c if exist "%%a:" echo;%%a:
	if "%%a"=="%b%" set c=
)
pause
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