Brief Analysis of object-oriented python

Brief Analysis of object-oriented python
_ Author _ = 'xiaobo' Python object-oriented brief analysis. To download the attachment, change the suffix. py, use "notepad ++" to open this document. "alt + 0" folds the function and makes it easy to see that everything in python is an object. In fact, the theoretical knowledge of object-oriented programming is quite understandable. To put it bluntly, it is just a bunch of nouns. In this way, the meaning of each noun represents and the relationship between them can be easily solved. Basic Terms of python Object-Oriented Programming: Class, object, method, and attribute. Relationships between classes and objects: classes are abstract objects, and objects are class instantiation. A class does not represent a specific thing, but an object represents a specific thing. Intuitively speaking, a bad person refers to a group of people. So you are a bad guy, because you have some characteristics of the bad guys. The bad guys are a class, and you are an object in the class. However, in actual programming, classes are not so well divided and need to be used more. Class and Object-Defined variables are called attributes. The class-Defined variables are called class attributes. The object-Defined variables are called methods in the object property class ): is the action conclusion of the object: Common Use Cases of the object = Attribute + method class, the object with the same attributes and methods is classified as a class: So the class is often used in: 1. Multiple methods share the same variables. 2. dynamically create objects with the same attributes. Three major features of the class: Polymorphism means that the same operation can be performed on different objects, but they may present results in multiple forms. Inheritance: One of the main benefits of object-oriented programming is code reuse. One of the ways to achieve this reuse is through the Inheritance Mechanism, which can be simply understood as subclass inheriting the parent class. Encapsulation: A class encapsulates the required attributes and methods in a class. Multiple methods can share a group of variables, and multiple objects can be created through a template. Class Member: field (attribute): static field, dynamic field method: dynamic method (class function), static method, class method property: a variable for class and object, another prerequisite class for adding a modifier to a method must be a new class. 1. @ property 2 and @ method name. setter 3, @ method name. deleter, the access is in the form of a field (so it is also called an attribute, your own understanding) class member modifier: Add _ (two horizontal bars) before the attribute or method ), the attributes and methods are private and cannot be accessed directly. Referencing images of a great God gives you a more intuitive understanding of object orientation. Some of these terms are not the same. Don't worry about them.