Class instance variables in Ruby and instance variables of instances

The syntax for instance variables in Ruby is somewhat similar to the properties of Java objects, but the classes in Ruby also have strength variables,

Class person  @name = ' Hello '  def initialize (name,age)    @name = name    @age = Age  End  def self.talk #类方法, class methods can access the class's strength variable    puts "#{@name}"  end Def talk  #实例方法, only instance variables of the instance    puts "#{@name}"  endendp1 = Person.new (' Jack ', p2) = Person.new (' Lily ', 21)

P1.talk  #jack
P2.talk  #lily
Person.talk #hello

　　

Class instance variables in Ruby and instance variables of instances