function () {    $(‘.audio‘).each(function () {        var $this = $(this);        var id = $this.attr(‘audioid‘);        var src = http://www.mamicode.com/$this.attr(‘src‘);"btn-group audio-control">    <button type="button" class="btn btn-default btn-repeat"><span class="glyphicon glyphicon-repeat"></span></button>    <button type="button" class="btn btn-default btn-play"><span class="glyphicon glyphicon-play"></span></button>    <button type="button" class="btn btn-default btn-pause"><span class="glyphicon glyphicon-pause"></span></button>    <button class="btn btn-default" disabled="disabled">        <div class="progress">            <div class="progress-bar" role="progressbar" aria-valuenow="60" aria-valuemin="0" aria-valuemax="100" style="width:0;">                <span class="sr-only">60% Complete</span>            </div>        </div>    </button>    <button class="btn btn-default btn-size" disabled="disabled"></button></div>‘);        var width = (soundsize < 20 ? 20 : soundsize > 60 ? 60 : soundsize) * 300 / 60;        $this.find(‘.progress‘).width(width);        var $btnplay = $this.find(‘.btn-play‘);        var $btnpause = $this.find(‘.btn-pause‘).hide();        var $btnrepeat = $this.find(‘.btn-repeat‘);        var $btnsize = $this.find(‘.btn-size‘).text(soundsize + ‘s‘);        var $audio = $this.find(‘audio‘);        var $progressbar = $this.find(‘.progress-bar‘);        $btnplay.bind(‘click‘, function () {            if (!$audio.attr(‘src‘)) {                $.ajax({                    url: ‘Sound.ashx‘,                    data: { id: id, url: src },                    dataType: ‘json‘,                    type: ‘POST‘,                    success: function (data, textStatus, jqXHR) {                        // 加载音频文件                        if ($audio.attr(‘src‘) != data.url) {                            $audio.bind({                                ‘canplaythrough‘: function () {                                    //alert(‘音频文件已经准备好，随时待命‘);                                    this.volume = 1;                                    this.play();                                },                                ‘timeupdate‘: function () {                                    // 跟踪进度                                    var duration = this.duration;                                    var currentTime = this.currentTime;                                    $progressbar.width((currentTime / this.duration) * width);                                },                                ‘pause‘: function () {                                    $btnplay.show();                                    $btnpause.hide();                                },                                ‘ended‘: function () {                                    $btnplay.show();                                    $btnpause.hide();                                },                                ‘playing‘: function () {                                    $btnplay.hide();                                    $btnpause.show();                                }                            });                            $audio.attr(‘src‘, data.url);                        }                     }                });            }            else {                $audio[0].play();            }        });        $btnpause.bind(‘click‘, function () {            $audio[0].pause();        });        $btnrepeat.bind(‘click‘, function () {            $audio[0].currentTime = 0;            $audio[0].play(); ;        });    })public void ProcessRequest(HttpContext context)        {            context.Response.ContentType = "text/plain";                                    // 下载音频文件            var id = context.Request["id"];            var url = context.Request["url"];            // 判断文件是否存在            var filepath = "/Audio/" + id + ".mp3";            if (System.IO.File.Exists(context.Server.MapPath(filepath)))            {                context.Response.Write("{\"url\":\"" + filepath + "\"}");                return;            }            HttpPost clientContext = new HttpPost(url);            var data = http://www.mamicode.com/clientContext.GetBytes();"~/Audio/ffmpeg.exe")                   , context.Server.MapPath("~/temp/")                   , context.Server.MapPath(filepath)                   , SpeexDecoderType.MP3);                context.Response.Write("{\"url\":\"" + filepath + "\"}");                return;                //context.Response.Redirect("~/Audio/" + filename);            }            catch (Exception)            {            }            //context.Response.Write("Hello World");        }