The complexity in SAX comes from the Observer design pattern it implements.
SAX中的复杂度来自它实现的Observer设计模式。
The Observer design pattern allows interested parties to be notified of changes.
Observer设计模式可以把更改通知给对此感兴趣的对象。
As we have seen, the Model-View relationship is an indirect one based on the Observer design pattern.
正如我们所看到的模型视图关系是间接的观察者设计模式为基础。
In application architecture, a common technique for reducing coupling between components that must communicate with each other is to use a design pattern called the Observer.
在应用程序结构中，通常采用Observer(观察者)设计模式来减少互相通信的组件之间的耦合。
Events follow the Observer or Publish-Subscribe design pattern; they are used when a state change in one object must be communicated to other objects.
事件是依照「观察者」或「发行-订阅」的设计模式，当必须将一个物件的状态变更传送至其他物件时，就会使用事件。
Events follow the Observer or Publish-Subscribe design pattern; they are used when a state change in one object must be communicated to other objects.
事件是依照「观察者」或「发行-订阅」的设计模式，当必须将一个物件的状态变更传送至其他物件时，就会使用事件。
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