canyuexiaolang

@echo off
for /f "tokens=* delims=" %%i in (1.txt) do set /a num+=1
for /f "tokens=* delims=" %%i in (1.txt) do (
    set /a line+=1
    set "n=%%i"
    setlocal enabledelayedexpansion
    if !line! equ %num% (echo !n:AAA=BBB!>>1_temp.txt) else (echo %%i>>1_temp.txt)
    endlocal
)
move "1_temp.txt" "1.txt" && echo 完成
pause>nul
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canyuexiaolang

回复 8# lbailian


   看不到我已经给你解答了么。只用sed、？