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利用模糊数学中的隶属函数将工程施工中常遇到的多目标多阶段决策问题转化为单目标多阶段决策问题，因而可以用动态规划方法求解。隶属函数对多指标策略的优劣评价符合人们的习惯，使用起来较简便。本文构造了符合动态规划要求的具体指标函数，设计了简便的标号法，概念清晰、易懂易用，适合施工管理人员及其他管理决策人员使用，证明了本方法的合理性。
The membership function in fuzzy mathematics is used to transform the multi-objective and multi-stage decision-making problems often encountered in engineering construction into single-object and multi-stage decision-making problems, which can be solved by dynamic programming methods. The evaluation of the superiority and inferiority of the membership function to multi-index strategy is in line with people’s habits, and it is easier to use. This paper constructs a specific index function that meets the requirements of dynamic programming. A simple labeling method is designed. The concept is clear, easy to understand and easy to use. It is suitable for construction managers and other management decision-makers, and proves the rationality of this method.