close: function (hasTaskitem) {
        if (this.inBrowser) {
            this.desktop.refreshApp(this.desktop.appCurrentList[0]); // 刷新首页即第一个tab
            window.open("", "_self").close();
            window.close();
        } else {
            this.fireAppEvent("queryClose");

            this.setUncurrent();
            this.window.close(function () {
                if (!hasTaskitem) this.taskitem.destroy();
                this.window = null;
                this.taskitem = null;
                if (this.resizeFun) layout.desktop.removeEvent("resize", this.resizeFun);

               this.desktop.refreshApp(this.desktop.appCurrentList[0]); // 刷新首页即第一个tab
            
                this.desktop.closeApp(this, hasTaskitem);
                this.fireAppEvent("postClose");
                
                o2.release(this);
            }.bind(this));
        }

    },