AOP由五个子系统组成，它们是AOP XML装载系统、AOP处理系统、AOP文件监测系统、动态代理类生成器和静态代理类生成器。

AOP consists of five subsystems, which are AOP XML Loading system, AOP Processing system, AOP File Watching system, Dynamic Proxy Class Builder and Static Proxy Class Builder.

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一个新的生成器类可以让开发者快速创建通知，通知可以包括大，小图标，标题，优先级标志和其它所有早期版本所具有的属性。

A new builder class lets developers quickly create notifications that include large and small ICONS, a title, a priority flag, and any properties already available in previous versions.

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class——指定扩展生成器或扩展处理程序的类名。

Class — specifies the class name of the extension generator or extension handler.

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