@echo off
for /f "delims=" %%a in ('dir /a-d /b /on *.txt') do (
for /f "delims=" %%b in ('type "%%a"') do (
if not defined %%b set %%b=Def & >>$ echo,%%b
)
)
move $ "合并.txt"
pause
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@echo off
(for /f "delims=" %%a in ('dir /b /a-d *.txt') do (
    for /f "delims=" %%b in ('type "%%a"') do (
        if not defined %%b (
            set %%b=1
            echo,%%b
        )
    )
))>合并.txt
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@echo off
(for /f "delims=" %%a in ('type *.txt' 2^>nul) do (
	if not defined %%b (
		set %%b=1
		echo,%%b
	)
))>合并.txt
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@echo off
setlocal enabledelayedexpansion
(for %%i in (*.txt) do (
    for /f "usebackq delims=" %%a in ("%%i") do (
	    echo,%%a
    )
)) >%temp%\$
for /f "delims=" %%i in (%temp%\$) do (
	call :find "%%i"
)
pause

:find
find "%~1" "$1" >nul 2>nul||echo,%~1>>$1.txt&&goto :eof
goto :eof
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@echo off
setlocal enabledelayedexpansion
(for %%i in (*.txt) do (
    for /f "usebackq delims=" %%a in ("%%i") do (
	    if not defined %%a set "%%a=."&echo,%%a
	)
)) >$
move /y $ result.txt >nul
pause 
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if ($true){}# == ($true){}# goto ___yiwuyun
<# 
:___yiwuyun
@echo off&setlocal&cls
(echo $strPath="%~dp0"&type "%~f0")|powershell -command -
pause
exit/b 0
#>

gc -path ($strPath+"*.txt")|sort  -unique

<#end#>
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