本程序用布局管理器实现了左右选择框，左边的选项可以点击按钮添加到右边，右边的也可通过点击按钮移动到左边。所有的选项都可以手动输入。-This procedure used to achieve the layout manager about the selection box, click the left button of the option can be added to the right, the right click button can also be moved to the left. All the options can be input manually.