 = document.getElementById('receiver');
        var audio = document.querySelector('audio');
        window.initPlayer = function(obj){        
        obj.playlist = []; //播放列表        
        obj.position = 0; //当前播放位置
        //播放音乐(循环播放)
        obj.start = function(){
            if(jQuery.isArray(obj.playlist) && obj.playlist.length>=1){
                $(obj).attr("src", obj.playlist[obj.position % obj.playlist.length]);    
                obj.play();
            