'宣言 Public MustOverride Function ProvideStream( _ ByVal dataSource As FinancialCalculationDataSource, _ ByVal supportingCalculations As FinancialCalculationSupportingCalculations _ ) As IEnumerable(Of Double)
public abstract IEnumerable<double> ProvideStream( FinancialCalculationDataSource dataSource, FinancialCalculationSupportingCalculations supportingCalculations )