Python Series Reflection

First, static methods (Staticmethod) and class methods (Classmethod)

Class method: There is a default parameter CLS, and can be called directly with the class name, you can interact with class properties (that is, you can use class properties)

static method: Let the method in the class be called directly by the class, just like the normal calling function

The same point of a class method and a static method: All can be called directly by the class, without the need to instantiate

The difference between a class method and a static method:

The class method must have a CLS parameter representing the class, and you can use the Class property

Static methods do not require parameters

Binding methods: Divided into common methods and class methods

Common method: A Self object is passed in by default and can only be called by an object-------bound to an object

Class method: A CLS object is passed in by default and can be called by classes and objects (not recommended)-----bound to a class

Unbound methods: Static methods: No default parameters are set and can be called by classes and objects (not recommended)-----unbound

Class Foo:    passclass Son (Foo):    passs = Son () print (Isinstance (S,son))  #判断s是不是Son的对象print (type (s) is Son) Print (Isinstance (s,foo))  #判断s是不是Foo的对象  not accurate print (type (s) is Foo)  #type比较精准print (Issubclass (Son,foo)) # Determine son is not a subclass of Foo print (Issubclass (son,object)) print (Issubclass (foo,object)) print (Issubclass (int,object))

Python Series Reflection