有关m3u文件的定义

具体见:

http://www.afterdawn.com/glossary/terms/m3u.cfm

http://www.afterdawn.com/glossary/file_extensions/m3u.cfm

.m3u

A .m3u file is a playlist for multimedia files. It was originally implemented in Winamp but since has been increasing supported by other audio playback software such as Foobar 2000 and Windows Media Player.

It stores the location of one or more audio files. It can reference files stored in the same folder, on a separate folder on the same HDD or another or even a URL. It's simple a text file so if you would like to know more about how it works, open it with a text editor like notepad.

M3U was originally developed in late 1990s as a standard playlist format for MP3s, although its use has since then expanded beyond MP3s.

The .m3u files are basically just textfiles that list one MP3 or other media file on each line, normally with full path or URL to the file. If the .m3u file is loaded to an MP3 player, the player normally plays the list of media files in the order they are listed in the playlist (unless options such as "randomize" have been selected in the MP3 player).