[JavaScript]plupload多图片上传图片

var uploader = new plupload.Uploader({ //创建实例的构造方法
    runtimes: 'html5,flash,silverlight,html4',
    //上传插件初始化选用那种方式的优先级顺序
    browse_button: 'btn',
    // 上传按钮
    url: "ajax.php",
    //远程上传地址
    flash_swf_url: 'plupload/Moxie.swf',
    //flash文件地址
    silverlight_xap_url: 'plupload/Moxie.xap',
    //silverlight文件地址
    filters: {
        max_file_size: '500kb',
        //最大上传文件大小（格式100b, 10kb, 10mb, 1gb）
        mime_types: [ //允许文件上传类型
        {
            title: "files",
            extensions: "jpg,png,gif"
        }]
    },
    multi_selection: true,
    //true:ctrl多文件上传, false 单文件上传
    init: {
        FilesAdded: function(up, files) { //文件上传前
            if ($("#ul_pics").children("li").length > 30) {
                alert("您上传的图片太多了！");
                uploader.destroy();
            } else {
                var li = '';
                plupload.each(files,
                function(file) { //遍历文件
                    li += "<li id='" + file['id'] + "'><div class='progress'><span class='bar'></span><span class='percent'>0%</span></div></li>";
                });
                $("#ul_pics").append(li);
                uploader.start();
            }
        },
        UploadProgress: function(up, file) { //上传中，显示进度条
            $("#" + file.id).find('.bar').css({
                "width": file.percent + "%"
            }).find(".percent").text(file.percent + "%");
        },
        FileUploaded: function(up, file, info) { //文件上传成功的时候触发
            var data = JSON.parse(info.response);
            $("#" + file.id).html("<div class='img'><img src='" + data.pic + "'/></div><p>" + data.name + "</p>");
        },
        Error: function(up, err) { //上传出错的时候触发
            alert(err.message);
        }
    }
});
uploader.init();