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运用模糊数学的方法解决信息产品定价模糊性的问题，提出一种等级价格思想，使定性评判与定量计算相结合，构建出一种可计算出确定值的模糊综合定价模型
The method of fuzzy mathematics is used to solve the fuzziness of information product pricing. A hierarchical price idea is proposed to combine qualitative evaluation with quantitative calculation to construct a fuzzy comprehensive pricing model