<input id="fileupload" type="file" name="files[]" data-url="{:U('/UpFile/index')}" multiple>
<script src="__PUBLIC__/Js/upfile/jQueryFileUpload/vendor/jquery.ui.widget.js"></script>
<script src="__PUBLIC__/Js/upfile/jQueryFileUpload/jquery.iframe-transport.js"></script>
<script src="__PUBLIC__/Js/upfile/jQueryFileUpload/jquery.fileupload.js"></script>

<script>
$(function () {
    $('#fileupload').fileupload({
        dataType: 'json',
        done: function (e, data) {
alert(data.result.info);
        }
    });
});
</script>

就这样就可以了.这是最简单的方法 ,但是按钮比较丑.