77七

@echo off
cd /d "%~dp0"
for /r /d %%d in (*) do (
	setlocal
	for /f "delims=" %%i in ('2^>nul dir /b /a-d "%%d"') do (
		set /a n+=1
		call ren "%%d\%%i" "%%~nxd（%%n%%）%%~xi"
	)
	endlocal
)
pause
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