Create header HTML component objects in the component Library list referencing the previously created images and the world clock menu component.
在Component Library列表中创建标题HTML组件对象，引用以前创建的图像和世界时钟菜单组件。
The header has a default set of links to manage objects in the domain, context-sensitive help, and an About page.
标头有管理域内对象的一套默认链接，有上下文敏感帮助，还有关于页面。
We must ensure that including a header file more than once does not cause multiple definitions of the classes and objects that the header file defines.
我们必须保证多次包含同一头文件不会引起该头文件定义的类和对象被多次定义。
应用推荐