[文本处理] 批处理怎样按要求循环提取TXT？

@echo off&setlocal enabledelayedexpansion
for /f "tokens=1* delims=:" %%a in ('findstr /n .* t.txt') do (
    if "%%b" equ "" (
       for /l %%c in (!min!,1,!max!) do echo !_%%c!
       set "min="&pause
       ) else (
       if not defined min set /a min=%%a
       set "_%%a=%%b&set /a max=%%a
    )
)
for /l %%a in (%min%,1,%max%) do echo !_%%a!
pause
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@echo off&setlocal enabledelayedexpansion
for /f "tokens=1* delims=:" %%a in ('findstr /n .* t.txt') do (
    if "%%b" equ "" (
       call :lp&pause&set "str="
       ) else (
       set "str=!str!echo %%b^&"
    )
)
call :lp
pause&goto :eof
:lp
%str%
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@echo off
setlocal enabledelayedexpansion&cls
:start ============================================================
for /f "tokens=1* delims=:" %%a in ('findstr/n .* 1.txt') do (
if "%%b"=="" (
		set/p choice=继续提取^(y^|n^):
if "!choice!"=="n" goto end
)
echo %%a %%b
)

:end ==============================================================
pause
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