23个经典设计模式

Creational Patterns 
--- Abstract Factory 
--- Builder 
--- Factory Method 
--- Prototype 
--- Singleton 
Structural Patterns 
--- Adapter 
--- Bridge 
--- Composite 
--- Decorator 
--- Facade 
--- Flyweight 
--- Proxy 
Behavioral Patterns 
--- Chain of Responsibility 
--- Command 
--- Interpreter 
--- Iterator 
--- Mediator 
--- Memento 
--- Observer 
--- State 
--- Strategy 
--- Template Method 
--- Visitor