Ruby单例方法和实例方法

#单例方法：对象的实例方法，其只属于具体类实例对象

#实例方法，属于类的每个实例对象。单例方法只出现在单个实例对象中

class Person

def talk

puts "This is a Person class."

end

end

p1=Person.new

p2=Person.new

#定义单例方法，首先要生成一个实例对象，其次，要在方法名前加上对象名和一个点号“.”

def p2.talk

puts "This talk method belongs to p2."

end

def p2.laugh

puts "laugh method belongs to p2."

end

p1.talk #This is a Person class.

p2.talk #This talk method belongs to p2.

p2.laugh #laugh method belongs to p2.