Programmer Think

1, Encapsulation Encapsulation: it is the hiding and modularization of information. It is a method to separate the interface from the implementation. In the study of computer language, we have encapsulated data and function. Object encapsulation encapsulates the data and its operations into a whole object, so that the program can access or mod ...

A concept of encapsulation In fact, packaging is everywhere in our life, such as televisions, computers, mobile phones and other items. Usually, we can only see the external shape and use the functions provided by them, but we can't see the complex hardware composition inside. These are encapsulated and can't be seen by us. We can avoid so ...

1, What is object-oriented The idea of object-oriented (OO) is very important for software development. Its concept and application have even gone beyond program design and software development, and extended to fields such as database system, interactive interface, application structure, application platform, distributed system, network manage ...

Three features of Java (encapsulation / Inheritance / polymorphism) 1. Encapsulation Benefits of encapsulation: Hide information (permissions) and provide specific method accessEasy to add control statementsConvenient modification and Implementation Specific performance of packaging: Attributes are decorated with private The method is mo ...

Reference: Object oriented encapsulation encapsulation The core of the three object-oriented features Encapsulation < - > consolidation Hide encapsulated attributes How to hide attributes: add before the attribute name__ Prefix, you will achieve an external hidden attribute effect class Foo: __x = 1 def __f1(self): ...

1, Encapsulation 1.1 what is encapsulation Encapsulation, i.e. hiding**object**of**Properties and implementation details**，Public only**Interface**(method/Function), which is controlled in the program**Read and modify properties**of**Access level**；Combine the abstract data and behavior (or function) to form an organic whole, that is, comb ...

1. Classes and Objects A comparison of object-oriented and process-oriented ideas: Process Oriented: A process-centric programming idea in which each step of functionality is achieved by itself Object-oriented: An object-centric programming idea that implements specific functions by directing objects 1.1 Relationship between Classes and Obj ...

1, Background introductionThere are many split services in the distributed system. In the process of continuous iterative upgrading, the following common thorny situations will occur:For the version upgrade of a technical component, depending on the package upgrade leads to the expiration of some syntax or API, or the component fixes urgent vul ...