使用过WordXP的人都知道，她的界面可谓是耳目一新。尤其是她的菜单和工具条可真是酷。本程序实现在工具栏上添加平面下拉控件。-WordXP used by anyone who knows that she can be said to be refreshing interface. In particular, her menus and toolbars can be really cool. This procedure to achieve on the toolbar to add