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ysitbook 发表于 2011-03-14 13:22

Ruby 的 YAML 对象序列化

require 'yaml'
class Special
    def initialize(valuable, volatile, precious)
      @valuable = valuable
      @volatile = volatile
      @precious = precious
    end

    def to_yaml_properties
      %w{ @precious @valuable }
    end
    def to_s
      "#@valuable #@volatile #@precious"
    end
end

obj = Special.new("Hello", "there", "World")
puts "Before: obj = #{obj}"
data = YAML.dump(obj)
obj = YAML.load(data)
puts "After: obj = #{obj}"

obj = Special.new("Hello", "there", "World")
puts YAML.dump(obj)

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