인스턴스 변수와 메소드

Ruby

class Cal
  def initialize(v1,v2)
    @v1 = v1
    @v2 = v2
  end
  def add()
    return @v1+@v2
  end
  def subtract()
    return @v1-@v2
  end
end
c1 = Cal.new(10,10)
p c1.add()
p c1.subtract()
c2 = Cal.new(30,20)
p c2.add()
p c2.subtract()

Python

class Cal(object):
    def __init__(self, v1, v2):
        self.v1 = v1
        self.v2 = v2

    def add(self):
        return self.v1+self.v2

    def subtract(self):
        return self.v1-self.v2


c1 = Cal(10,10)
print(c1.add())
print(c1.subtract())
c2 = Cal(30,20)
print(c2.add())
print(c2.subtract())