47. What are the characteristics of Python's inheritance in object-oriented?

Benefits of Inheritance :

1. Build the class in the system to avoid repetitive operation .

2, the new class is often based on existing classes, so that you can improve the code reuse degree .

Characteristics of inheritance :

1, the construction of the base class in inheritance (The __init__ () method) is not automatically called, it needs to be called specifically in the construction of its derived class. different from C #

2. When calling a method of a base class, you need to prefix the class name of the base class with the Self argument variable. Unlike calling a normal function in a class, you do not need to take the self argument

3, Python always first looks for a method of the corresponding type, and if it cannot find the corresponding method in the derived class, it begins to look up one by one in the base class. (Find the method that was called in this class before you can find it in the base class).

47. What are the characteristics of Python's inheritance in object-oriented?