Python's----class

Object-Oriented Programming
Class
#面向对象的开发语言

#一切皆对象.

#面向过程

#面向对象

#面向对象它是包含面向过程的

#类 kind of thing, a model
#实例 #通过这个模型造出来的东西
#对象 #实例
#实例化 #就是造实例的过程

#面向的对象的特性
#封装
#就是把零散代码封装成一个函数, or encapsulated into a class
#继承
#就是父类有的东西, you also have.

#多态
#一种方法多种实现.
#属性 is the variable inside the class.
#方法 is the function within the class, which is actually the functions inside the class.
#构造函数
Initialize this object, what do you want him to preach to you?
He will do this automatically when the class is instantiated.
#析构函数
It is executed automatically when the instance is destroyed.
#类里面的函数如果有多次调用, and to get his return value, use return
If this variable is used once, then use self

#类变量
There are some common things in the class that don't change, use class variables

#实例变量
The variable that was created when the instance was instantiated.
#类方法
Can be called directly through the class name, no instantiation required
@classmethod
def fuc (CLS):
Pass
#静态方法
is just a normal function written in the class.
@staticmethod
Def myFunc ():
Pass
#实例方法
Methods that must be instantiated before they can be called
The function inside the class, if the first argument is self, then is an instance method

#属性方法
Turn a method into a variable
@property
def add (self):
return 18
The property method is also an instance method that needs to be instantiated for use.
Property methods can also be implemented by instance methods
If you use a property method, you must have a return value, and you cannot have a parameter.
#继承
#多态
#私有
Private properties, variables
Private methods, functions
method or variable, preceded by __, (two underscore), it is a private method/private variable
A private method or variable is used in a class, and it is not good to make a class.
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Coding specification:
Naming conventions
Strtodict #如果有多个单词的话, capitalize each word first letter
If it's a class name, capitalize the first letter.
str_to_dict# multiple words with underscores.

Python's----class