设计模式 - TypeScript 版本

• 7大原则 - 开闭原则（OCP）

  Software entities should be open for extension，but closed for modification.

• 7大原则 - 里氏替换原则（LSP）

  Inheritance should ensure that any property proved about supertype objects also holds for subtype objects.

• 7大原则 - 依赖倒置原则（DIP）

  High level modules should not depend upon low level modules. Both should depend upon abstractions. Abstractions should not depend upon details. Details should depend upon abstractions.

• 7大原则 - 单一职责原则（SRP）

  There should never be more than one reason for a class to change.

• 7大原则 - 接口隔离原则（ISP）

  The dependency of one class to another one should depend on the smallest possible interface.

• 7大原则 - 迪米特法则（LoD）

  Talk only to your immediate friends and not to strangers.

• 7大原则 - 合成复用原则（DRP）

  Composition/Aggregate Reuse Principle，CARP.