说明： 从应用程序的各界面要素，包括菜单、按钮、工具条、状态条、对话框、窗口与视图以及应用程序封面和帮助文件的制作等方面，讲解怎样改善应用程序的用户界面。 (from the application of the interface elements, including menus, buttons, tools, state of the dialog box, and the View window and the application procedures and help cover the production of such documents, on how to improve the application's user interface.)
