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Link:Reading ID3 tags with JavaScript（貌似要翻墙才能打开）
通过JS读取MP3的ID3标签，使用比较简单，把从网站上下载的两个包导入，再用下面的代码就可以了

// URL of the mp3 file (must be on the same domain!)
var file = “mymusicfile.mp3″;

// define your own callback function
function mycallback() {
// either call the ID3.getAllTags([file]) function which returns an object holding all the tags
alert(
“All tags in this file: ” + ID3.getAllTags(file).toSource()
);

// or call ID3.getTag([file], [tag]) to get a specific tag
alert(
“Title: ” + ID3.getTag(file, “title”) + ” by artist: ” + ID3.getTag(file, “artist”)
);
}

ID3.loadTags(file, mycallback);

还有个Demo可以看
点击下载 id3.zip [3.17 KB]

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