Python notes-object-oriented programming of DAY7-1

Python notes-object-oriented programming of Day7-1 when to use object-oriented:

The parameters of multiple functions are the same;
When some functions have the same parameters, the object-oriented method can be used to encapsulate the value of the parameter one time to the object, then to the object to take the value;

What is Sele? Self is a python that automatically assigns the arguments that it is worth, which object executes the method, which object it is, and how it is constructed: there is a special method in the class, __init__, Class () automatic execution, object-oriented, three main features: encapsulation, inheritance, polymorphism;

Python notes-object-oriented programming of DAY7-1