中国DOS联盟

@echo off

cd/d %~dp0

for /f %%f in ('dir/b A') do (

　if not exist "B\%%f" (copy "A\%%f" B) else (call :cpy_an "%%~f")

)

goto :eof

:cpy_an

　setlocal enableDelayedExpansion

　for /f "tokens=1* delims=-" %%i in ("%~1") do (

　　set fn=%%i

　　set/a num=%%j

　　:rn

　　set/a num+=1

　　if exist "B\!fn!-!num!%~x1" goto :rn

　　copy "A\%~1" "B\!fn!-!num!%~x1"

　)

goto :eof