理学 设计模式 释 observer pattern 观察者模式 一种设计模式。定义一个对象与其他对象之间的一对多的依赖关系，当一个对象改变状态时，所有与它有依赖关系的对象都被通知并自动更新。又称依赖（dependents）模式、发布-订阅（publish-subscribe）模式。
软件工程 释文 observer pattern 观察者模式
- pre-Abelian category
- pre-Abelian representation
- preabsorption
- preaccelerator
- preaccentuator
- preacher
- pre-action fire sprinkler system
- preaction sprinkler system
- preadaptation
- pre-adaptation to climate change
- preadditive category
- pre advancement
- preageing
- preaging
- Preah Vihear Province
- Preah Vihear Temple
- Preah Vihear Temple Dispute
- pre-alarm of big data
- prealbumin
- prealgebra
- prealgebraic variety
- preallocation
- prealloy
- pre-alloyed powders
- prealloying