[文本处理] 批处理怎样根据一个文件的内容查找另一个文件的指定列？

@echo off
    for /f "tokens=1,2* delims= " %%i in (1.txt) do (
    findstr /I /c:"%%i %%j" 2.txt >> .tmp
    )
    
    for /f "tokens=3 delims= " %%i in (.tmp) do (
    echo %%i >> 3.txt
    )
del .tmp
pause
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@echo off
    setlocal enabledelayedexpansion
    for /f "tokens=1,2* delims= " %%i in (1.txt) do (
    for /f "tokens=3 delims= " %%a in ('findstr /I /c:"%%i %%j" 2.txt') do (
    echo %%a >> 3.txt
    )
    )
pause
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@echo off 
(for /f "delims=" %%i in (a.txt) do (
    for /f "tokens=1,2,3 delims= " %%a in (b.txt) do (
        if "%%a %%b" equ "%%i" (
            echo,%%c
        )
    )
))>c.txt
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