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。
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。
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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