qixiaobin0715

@echo off
set /p Lines=请输入总行数
set /a str=%Lines%-40
setlocal enabledelayedexpansion
set n=0
(for /f "delims=" %%a in (a.txt) do (
set /a n+=1
echo %%a
if !n! geq %str% goto abc
))>1.txt
:abc
pause
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回复 1# artisan