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
- PE screen completion technology for horizontal well
- Peshawar
- Pesin
- Pesin theory
- pessimistic criterion
- pessimistic philosophy of life
- pessmistic explanatory style
- pessulus
- pest
- pest agricultural control
- pestalotiopsis needle blight of pine
- PEST analysis
- pest control operation
- Pest Control Science of Grassland：Volume Ⅰ——Grassland Rodents Science
- pest coordinate regulation
- pest damage level prediction
- pest development regulation
- peste des petits ruminants
- peste des petits ruminants virus，PPRV
- pest field diagnostic technology
- pest genetic control technology
- pest high-throughput detection technique
- pesticide
- pesticide analysis
- pesticide analysis method