sylovanas

@if not defined debug @echo off

:loop
set /p "input=要输入的行数:"
echo %input%|findstr -RC:"^[0-9]*$" >nul 2>&1 || echo.输入行号错误请重新输入 && goto loop
for /f "tokens=2* delims=:" %%a in (
'findstr -N "." aa.txt ^| findstr -RC:"^%input%:"') do echo %%a>>bb.txt )
复制代码

[ 本帖最后由 sylovanas 于 2009-1-12 10:00 编辑 ]