LINQPad-Queries LINQPad Queries SOLID S: Single responsibility principle(SRP) 單一職責 O: Open/close principle(OCP) 開放/封閉原則 L: Liskov substitution principle(LSP) Liskov替換 I: Interface Segregation Principle(ISP) 介面隔離 D: Dependency Inversion Principle(DIP) 依賴反轉