lua 面向对象

Account={balance=0}

function Account.count(v)
    -- body
    print("value is:"..v)
end

a=Account
a.count(100)

Account={balance=0}

function Account.count(self,v)
    -- body
    self.balance=self.balance+v
    print("value is:"..self.balance)
end

a=Account
a.count(a,100)
a:count(12)