Template method defines the structure of some methods in an abstract class, with some methods being abstract and implemented by subclasses, while other methods have concrete implementations that do not need to be repeated by subclasses.
Provide abstract interfaces: Abstract classes can define some abstract methods as interfaces for subclasses to implement, thereby achieving polymorphism and interface isolation.
Encapsulating common behavior: Abstract classes can encapsulate common behaviors and attributes, allowing them to be shared and reused by multiple subclasses.
Establishing the inheritance relationship of models: An abstract class can be used as a model class, defining some common attributes and methods for subclasses to inherit and implement specific functionalities.
Control of inheritance relationships: Abstract classes can restrict the behavior inherited by subclasses through abstract methods and properties, compelling subclasses to implement these methods and properties to ensure the integrity and consistency of the logic.
