Object-Oriented Programming Summary-Python,-python

Object-Oriented Programming Summary-Python,-python

All things are objects. The natural environment gives us endless imagination, and the idea of object-oriented programming comes from nature. In nature, classes and objects are everywhere. For example: birds and sparrows, fish and carp ...... birds are the generic names of various birds, while sparrows are only one of them (objects ).

What is process-oriented? What Is Object-Oriented?This is one of the "Contradictions" in the programming world. In fact, I am also dumb to find out... I can only take a drink to "Open the knife ". Oh, it's not an example.

Object-oriented:

Liquor is a kind of everyday life drink, liquor is an abstract class, Moutai is the specific object of wine, and cheers is the implementation method of drinking.

Class Drinking_wine (object ):

Def _ init _ (self, name ):

Self. name = name

Def drinking ():

Pick up wine bottle

Unscrew the wine cap

Pour wine

Drinking

Then call the class (Drinking_wine ()):

Maotai = Drinking_wine ('mouta') shuijingfang = Drinking_wine ('shuijingfang ') maotai. drinking () shuijingfang. drinking ()

Process-oriented:

Pick up the wine bottle on the table-> unscrew the wine lid-> take out the wine glass-> pour out the wine-> pick up the wine glass-> mouth out "bro, cheers !" -> Touch the glass.-> just drink it.

Def Drinking_wine ():

Pick up wine bottle

Unscrew the wine cap

Pour wine

Drinking

Object-Oriented Programming-Object Oriented Programming, or OOP for short, uses objects as the basic unit of a program. An Object contains functions of data and operation data. It is a program design idea.

In Python, all data types (including custom objects) can be considered objects. Data types can be identified by type. For example:

A = 4

Type ()

<Class 'int'>

Figure 1 type usage example

Specifically, in the Python programming environment, the Data Type of a custom object is the class in the object-oriented environment. Therefore, the design idea of object-oriented programming is to abstract the Class, and then create an instance based on the Class, and then the instance

Call a function.

 

Object-Oriented Programming is summarized as follows:

1. The degree of object-oriented abstraction is higher than that of functions, because a Class contains both data and operation data.

2. Three main features: inheritance, polymorphism, and Data encapsulation

3. Understand the differences between object-oriented and process-oriented