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Public Function PipeBalance（ByVal period As Integer） As Double#计算管道内所有债券的余额
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Public Function PriorityBalance（ByVal period As Integer，ByVal Priority As Integer） As Double#计算管道内某个目标等级的余额
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Private Function PayPriorityLevel（ByVal period As Integer，ByVal Priority As Integer，availFund As Double） As Double#为管道内同一指定级别的债券注入现金流
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Public Function WritedownPipe（period As Integer，totalWritedown As Double） As Double#为管道内债券进行减值
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4.衍生品模块
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利率通道（Corridors）和利率互换（SWAP）的计算。
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Private Sub CalDealPayLeg（useLessor As Boolean，BondBal As Double，period As Integer，DayAdj30 As Double）#计算付款（固定利率）的金额
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Private Sub CalDealRecLeg（useLessor As Boolean，BondBal As Double，period As Integer，dayAdjAct As Double）#计算收款 （浮动利率）的金额
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Public Sub CalDealCashflow（useLessor As Boolean，BondBal As Double，period As Integer，DayAdj30 As Double，dayAdjAct As Double）#计算净现金流
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四、现金流建模宏程序引用的计算函数
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（一）资产端模块
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1.资产管理人模块（Collateral Analyst）
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