In MC, net present value ( NPV) simulation, internal rate of return ( IRR) simulation, dynamic capital pay-off time simulation etc are worked out which have been proved to be scientific, reliable and operational through the actual example. 在MC法中,本系统编制了净现值模拟、内部收益率模拟、动态投资回收期模拟等,并通过实例证明了本模拟方法的科学性、可靠性和可操作性。