Understanding the basic inheritance in Ruby on Rails

Question

I am new to Ruby on Rails Development and was trying to understand inheritance in Rails, I understood how do a class inherit from a parent class

For Example MyController < ActionController , in this Action Controller is the parent class. But I dont understand this syntax

ApplicationController < ActionController::Base

Specifically what is the purpose of ::Base

Answer 1

该语法用于指示Base是ActionController名称空间内部的类。