.refresh();
		};
		var AddSubMenuCommand = function( receiver ){
			this.receiver = receiver;
		};

		AddSubMenuCommand.prototype.execute = function(){
			this.receiver.add();
		};
		var DelSubMenuCommand = function( receiver ){
			this.receiver = receiver;
		};
		DelSubMenuCommand.prototype.execute = function(){
			console.log( '删除子菜单' );
		};

		var refreshMenuBarCommand = new RefreshMenuBarCommand( MenuBar );
		var addSubMenuCommand = new AddSubMenuCommand( SubMenu );
		var de