Python Class (vii)-Special member Method of class

• __doc__

Used to represent descriptive information for a class

#-*-Coding:utf-8-*-__author__ = "MuT6 Sch01ar" class Person (object): "    This class is used to describe the"    def __init__ (self,name , age):        self.name = name        self.age =ageif __name__ = = ' __main__ ':    p = person (' John ', ')    print (p.__doc__)

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• __class__

Class used to represent the current object

#-*-Coding:utf-8-*-__author__ = "MuT6 Sch01ar" class Person (object): "    This class is used to describe the"    def __init__ (self,name , age):        self.name = name        self.age =ageif __name__ = = ' __main__ ':    p = person (' John ', ')    print (p.__ CLASS__)

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The person class for the current program

• __module__

Used to represent the module in which the current action object resides

#-*-Coding:utf-8-*-__author__ = "MuT6 Sch01ar" class Person (object): "    This class is used to describe the"    def __init__ (self,name , age):        self.name = name        self.age =ageif __name__ = = ' __main__ ':    p = person (' John ', ')    print (p.__module __)

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• __call__

The instantiated object is followed by parentheses to execute the method

#-*-Coding:utf-8-*-__author__ = "MuT6 Sch01ar" class Person (object): "    This class is used to describe the"    def __init__ (self,name , age):        self.name = name        self.age =age    def __call__ (self, *args, **kwargs):        print ("Test for Class") if __name__ = = ' __main__ ':    p = person (' John ', ')    p ()

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If the method is not defined, the object that is instantiated directly calls an error

• __str__

When you print an object, the return value of the method is printed

#-*-Coding:utf-8-*-__author__ = "MuT6 Sch01ar" class Person (object): "    This class is used to describe the"    def __init__ (self,name , age):        self.name = name        self.age =ageif __name__ = = ' __main__ ':    p = person (' John ', ')    print (p)

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If the __str__ method is not defined, the object's memory address will be returned if it is printed directly.

If there is a __str__ method defined.

#-*-Coding:utf-8-*-__author__ = "MuT6 Sch01ar" class Person (object): "    This class is used to describe the"    def __init__ (self,name , age):        self.name = name        self.age =age    def __str__ (self):        return "The person Class" if __name__ = = ' __ main__ ':    p = person (' John ', ')    print (p)

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Instead of the memory address of the object, the return value of the __str__ method is printed

• __dict__

Used to view all members of a class or object, expressed in a dictionary format

#-*-Coding:utf-8-*-__author__ = "MuT6 Sch01ar" class Person (object): "    This class is used to describe the"    def __init__ (self,name , age):        self.name = name        self.age =age    def __str__ (self):        return "The person Class" if __name__ = = ' __main __ ':    p = person (' John ', ')    print (person.__dict__)    print (p.__dict__)

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Python Class (vii)-Special member Method of class