在程序中动态创建菜单,菜单项中可以显示图标,比较美观-procedures in the creation of dynamic menu, the menu items will show icon, more beautiful

显示文件、编辑、帮助菜单项，并设置了热键，能实现打开、另存为、退出、改变字体、颜色等功能，并修改了应用程序图标。-Display File, Edit, Help menu item, and set the hotkey to achieve open, save as, exit, change fonts, colors and other functions, and modify the application icon.

在菜单中加入图标 Add an icon to the menu-Add icon to Add an icon in the menu to the menu