以下编制银行明细与分类明细自动核对并添加相关信息的代码，想法是如果两张表在具有相关数量的某一借方金额，则把分类明细中的凭证编号和出纳编号填写到相关的银行明细中，但是执行到黄色代码时提示错误如下：

无法将类型为“System.Collections.Generic.List`1[System.String]”的对象强制转换为类型“System.Collections.Generic.List`1[System.Double]”

Dim khyhs As List (of String) =  DataTables("银行明细").GetValues("开户银行")
msgbox(1)
For Each khyh As String In khyhs
    msgbox(2)
    Dim yhjifas As List (of Double) =  DataTables("银行明细").GetValues("借方金额","开户银行 = \'"& khyh & "\'")
    Dim fljifas As List (of Double) =  DataTables("分类明细").GetValues("借方金额","开户银行 = \'"& khyh & "\'")
    msgbox(3)
    For Each yhjifa As Double In yhjifas
        Dim yhjfs As List (of DataRow) = DataTables("银行明细").SQLCompute("借方金额 = \'"& yhjifa & "\'")
        Dim fljfs As List (of DataRow) = DataTables("分类明细").SQLCompute("借方金额 = \'"& yhjifa & "\'")
        If yhjfs.Count = fljfs.Count Then
            For n As Integer = 0 To yhjfs.count - 1
                yhjfs(n)("凭证编号") = fljfs(n)("凭证编号")
                yhjfs(n)("出纳编号") = fljfs(n)("出纳编号")
            Next
        End If
    Next
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