The way to write is as follows.
First, let's look at an example of a parent class.
class Mos def eat puts "eat" end
def drink puts "drink" end
def take_out puts "take-out" end end
Next, let's look at an example of an inherited child class.
class Mcdo <Mos # class inheritance def smile puts "smile free" end end
The methods of the parent class can be used by other inherited classes </ strong>.
|Method name||Mos(Parent class)||Mcdo(Child class)|
Looking at the above figure, you can see the eat, drink, and take_out described in the method of the parent class. You can see that it can be inherited by the child class. However, smile, which is a method of child class Mcdo, is Mos of parent class. Is not inherited by.
In other words class Child class name <Parent class name end By writing as follows, while inheriting the method of the parent class in another class, a new method can be created. You can add.