预测工程成本的方法主要有四种:参数法、单位成本法、项目总成本法和费率法。本文讨论了每种方法的含义、公式表达式、使用范围及其优缺点,并给出了简单的例子。其中,参数法和费率法使用比较简单,但准确性相对较低;单位成本法和项目总成本法预测的准确度较高,但单位成本法难以反映项目的特殊性,项目总成本法工作量大、要求较高。 There are four main ways to predict the cost of a project: parameter method, unit cost method, total project cost method and rate method. This article discusses the meaning of each method, formula expression, scope of use and advantages and disadvantages, and gives a simple example. Among them, the parameter method and the rate method are relatively simple to use, but the accuracy is relatively low. The accuracy of the unit cost method and the total project cost method is higher, but the unit cost method can not reflect the particularity of the project. Large amount, higher requirements.