@echo off
set/a n=1000
for %%a in (*.txt) do (
    for /f "delims=" %%b in ('findstr/n ".*" "%%~a"') do (
        set "str=%%b"&setlocal enabledelayedexpansion
        set "str=!str:*:=!"
        if not defined flag (>%%a echo %%~na&>>%%a echo/!str!) else (>>%%a echo/!str!)
        endlocal&set flag=a
     )
     set "flag="&call :_ren "%%a"
)
pause&exit
::重命名
:_ren
set/a n+=1
if not exist %n:~1%.txt (ren %1 "%n:~1%.txt") else goto _ren
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@echo off&set /a n=1000
setlocal enabledelayedexpansion
for %%i in (*.txt) do (
   set /a n+=1
   echo %%~ni>!n:~-3!.txt
   copy /b !n:~-3!.txt+"%%~nxi" !n:~-3!.txt
   del/q "%%i"
)
pause
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