菜单栏、工具栏及状态栏资源的创建和应用,程序运行时，在视图窗口中显示坐标轴、曲线、曲线的属性、状态栏的提示以 及所选菜单项的标记，并且都能够随着用户的选择而变化。-Menu bar, toolbar, and create and apply resource status bar, the program is running, the display attribute axes, curves, curves, tips, and mark the selected menu item