正好今天用到Mark一下 @echo off set /p before=请输入前面的字符 set /p after=请输入后面的字符 for /f "delims=" %%i in (1.txt) do ( if "%%i"=="" ( echo.>>2.txt ) else ( echo %before%%%i%after%>>2.txt ) ) ren 2.txt 1.txt