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会忽略空行 bat和txt都要ANSI编码

@echo off
REM 头
set "head=“这是"
REM 尾
set "foot=文件”"
REM 文件路径
set "file=G:\Desktop\1.txt"
( for /f "usebackq delims=" %%i in ("%file%") do echo %head%%%i%foot% )>"%file%_NEW"
move /y "%file%_NEW" "%file%" >nul
pause&exit 
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