一些软件设计原则

STUPID?
Singleton 
Tightcoupling 
Untestability 
Premature Optimization
Indescriptive Naming 
Duplication 

SOLID:
Single responsibility principle
Open/closed principle
Liskov substitution principle
Interface segregation principle
Dependency inversion principle

DRY principle: Don’t Repeat Yourself!
KISS principle: Keep It Simple, Stupid!
CQS principle Command Query Segregation
PoLA the Principle of Least Astonishment/PLS Principle of Least surprise
Demeter principle
CQRS means Command Query Responsibility Segregation