skynjupt

下面的批处理只会修改本文件夹下的TXT文本（不包括子文件下的TXT文本）

@echo off&chcp 936>nul&color 0A

mkdir tempFile 2>nul

for %%i in (*.txt) do (
	cd.>.\tempFile\%%~ni.temp
	call :subFun %%i
)

pushd ".\tempFile"
ren *.temp *.txt 1>nul
popd

move /y .\tempFile\*.txt .\ 1>nul
rd /q /s tempFile

echo 处理完毕，按任意键结束...
pause>nul&exit

::第一个参数为文件名
:subFun
setlocal EnableDelayedExpansion
set "b=0"
for /f "delims=" %%j in (%~1) do (
	if "%%j" neq "" (
		if !b! equ 0 (
		set "b=1"
		set "lines=%%j"
		set "line_1=!lines:~,20!"
		set "line_2=!lines:~19!"
		echo ^<a^>!line_1!^</a^>!line_2!>>.\tempFile\%~n1.temp
		) else (
		echo %%j>>.\tempFile\%~n1.temp
		)
	)
)
endlocal
goto :eof
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