批处理命令：剪切文本文件指定行数

@echo off\r\nsetlocal enabledelayedexpansion\r\n\r\nset /p num=请输入需要剪切的行数：\r\nset count=0\r\n\r\nfor /f "tokens=*" %%a in (500copykey.txt) do (\r\n set /a count+=1\r\n if !count! leq %num% (\r\n echo %%a>>output.txt\r\n ) else (\r\n echo %%a>>remaining.txt\r\n )\r\n)\r\n\r\necho 剪切完成！\r\npause