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
- prototype model
- prototype of kilogram
- prototype optical surveillance system
- prototype pattern
- prototype production for evaluation
- prototype theory
- Prototype Theory of Concept
- prototypical definition
- prototyping method
- Proto-urban Site of Sarazm
- protoxylem
- Protozoa
- protozoa
- protozoan
- protozoan infection
- protozoan parasite in blood and tissues
- protozoan parasite in intestinal tract and other cavity
- protozoiasis of animals
- protozoology
- protozoosis of fish
- protracted rain spell during reap period
- protractor
- protractor postulate
- protrichocyst
- protruding and waggling tongue