原文
FFMPEG:https://ffmpeg.org/
@echo off SETLOCAL ENABLEDELAYEDEXPANSION set path=.\m4a set rs=.\mp3 for /F %%i in ('Dir /B %path%') do ( set name=%%i start /B .\ffmpeg.exe -i "%path%\!name!" -ab 64k ".\%rs%\!name:~0,-5!.mp3" -y ) pause