1. Today we mainly talk about some methods
add @property in front of the function
You can disguise the function as an attribute and run the call without adding ().
2. The function cannot be assigned a value, if you want to change it
@name.setter
def name (self,x):
sef .__name=x
If you want to delete
@name.deleter
def name（self，x）
del self.__name
Create a uniform set of rules with base classes
Polymorphism refers to one thing, multiple forms, and subclasses must follow the standards of the parent class
import abc
class Animal(metaclass=abc.ABCmeta)
@abc.abstractmethod
def eat(self)
pass
Subsequent subclasses must have this eat() function
3. Two methods are mentioned
classmethod和staticmethod
Binding method: that is, the function in the class is the binding method of the object, and whoever calls it is passed in as the first parameter
Binding to a class: passing the class as the first parameter is to add @classmethod in front of the function in the class
There is no need to bind classes and objects in the class, just a simple function, just add @staticmethod in front
Anyone can use it, and it will not pass the value by itself.
Duck: That is, you agreed that everyone can use the same attributes. same property name