我能够绑定到audio 对象的ended 事件但肯定还有更多的逻辑需要补充。这对我有用：

(function($){

    var customAudio = {

        initialize: function() {
            var self = this;
            // execute logic independently for each playlist in the document
            $(\'.wp-playlist\').each(function(index) {
                // determine the last track in the playlist so that
                // when the last track ends we can pause the audio object
                lastTrack = $(this).find(\'.wp-playlist-tracks .wp-playlist-item:last a\');
                // bind to the audio object\'s ended event and execute
                // our own ended logic
                $(this).find(\'audio\').on(\'ended\', function() {
                    // pass the audio object and the last track
                    self.ended(this, lastTrack);
                });
            });
        },

        ended : function (audio, lastTrack) {
            // if this audio element is the last track, pause it
            if ( audio.currentSrc === lastTrack.attr(\'href\') ) {
                audio.pause();
            }
        }
    };

    $(function() {
        customAudio.initialize();
    });

}(jQuery));