Ruby学习之特殊类定义

#公共类方法的定义
class SpecialTest
        def meth1
            puts "This is meth1"
        end

        def meth2
            puts "This is meth2"
        end
end

obj1 = SpecialTest.new
obj2 = SpecialTest.new

#特殊类的定义，class << 代表它的特殊类
class << obj2
        def meth1
            puts "This is obj2's meth1"
        end

        def meth2
            puts "This is obj2's meth2"
        end
end

obj1.meth1
obj1.meth2
obj2.meth1
obj2.meth2