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Private Function CalcTurboTrigger（period As Integer） As Boolean#计算目标月份是否需要加速还款
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Public Function CalcSwap（period As Integer） As Double#计算目标月份互换衍生工具现金流
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Public Function CollatBalance（period As Integer，groupNum As Integer） As Double#计算目标月份群组内资产池面额
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Public Function CollatLoss（period As Integer，groupNum As Integer） As Double#计算目标月份群组内资产的损失额
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Public Function CollatPrepayPenalty（period As Integer，groupNum As Integer）As Double#计算目标月份群组内资产池内的提前偿付罚款额
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Public Function CollatInterest（period As Integer，groupNum As Integer） As Double#计算目标月份群组内资产池的利息额
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Public Function CollatPrincipal（period As Integer，groupNum As Integer） As Double#计算目标月份群组内资产池的本金额
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Public Function BondPrincipal（period As Integer，groupNum As Integer） As Double#计算目标月份群组债券的本金额
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Public Function BondInterest（period As Integer，groupNum As Integer） As Double#计算目标月份群组债券的利息
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Public Function BondBalance（period As Integer，groupNum As Integer） As Double#计算目标月份群组的债券余额
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Public Function SeniorBalance（period As Integer，groupNum As Integer） As Double#计算目标月份群组的高级债券余额
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Public Function subBalance（period As Integer，groupNum As Integer） As Double#计算目标月份群组次级债券余额
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Private Sub LoadPipes（）#按结构要求制作现金流管道
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Public Sub AddBonds（）#按结构要求把债券加入现金流管道
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Private Function CalcCumLoss（period As Integer）#计算贷款的损失额
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Private Function CalcRealizedLoss（period As Integer）#计算已发生的损失
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2.债券模块
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接收现金流管道里提供的现金流并按期偿还本金和利息或减值。
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Public Function PrincipalWritedown（period As Integer，totalWritedown As Double） As Double#债券减值
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Public Function PayInterest（period As Integer，rawRate As Double，capRate As Double，availFund As Double，bondCoupon As Double，couponCap As Double，status As String） As Double#偿付目标月份的利息
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Public Function PayPrincipal（period As Integer，payable As Double） As Double#偿付目标月份的债券本金
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3.现金流管道模块
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该模块对现金流的分配进行计算。现金流管道分为横向和纵向两种。横向管道负责分割现金流并付款给同样信贷级别的债券；纵向管道则对现金流进行自上而下的分配。
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Public Function PayPipe（period As Integer，availFund As Double，groupPercents As Variant） As Double#按横向或纵向以及比例向管道内注入现金流
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Public Function PayRemainLeg（ByVal period As Integer，availFund As Double） As Double#如果横向管道内某一债券已完全付清，剩下的应付现金将用以支付管道内剩余的另一债券
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