we6540

@echo off
setlocal EnableDelayedExpansion
set /p d=用户输入一串字符:
for %%i in (%d%) do (
set a=%%i
set b=!a:~1,5!
set c=!b:~-4!
echo !c!
)
pause
set a=
set b=
set c=
set d=COPY