Question

假设我有一个c＃类A，它继承自B类，后者继承自C类。

Class A : Class B
{}

Class B : Class C
{
    override OnIntialise()
    {
    do something else...
    }
}

Class C
{
    virtual Initialise()
    {
        OnIntialise();
    }
    virtual OnInitialise()
    {
        do something...
    }
}

现在当我调用a.Initialise（）时，程序将调用Class C中定义的方法Initialise（）。在Initialise（）中，是否会调用在C类或B类中定义的OnIntialise（）方法？

Answer 1

在这种情况下，将调用类

Sub UniqueNumber()
    Dim vDB, vR(), a
    Dim i As Integer, j As Integer, n As Long, z As Integer
    Dim k As Integer, p As Integer
    Dim dic As Object
    Dim s As String

    Set dic = CreateObject("Scripting.Dictionary")
    vDB = Range("a2", Range("a" & Rows.Count).End(3))
    z = UBound(vDB, 1)
    ReDim Preserve vR(1 To 3)
    For i = 1 To z: For j = 1 To z: For k = 1 To z

        If i <> j And i <> k And j <> k Then
            vR(1) = vDB(i, 1)
            vR(2) = vDB(j, 1)
            vR(3) = vDB(k, 1)
            s = Join(vR, "")
            If dic.Exists(s) Then
            Else
                n = n + 1
                dic.Add s, s
            End If
        End If
    Next k: Next j: Next i
    a = dic.Keys
    Range("d2").CurrentRegion.Offset(1).Clear
    Range("d2").Resize(n) = WorksheetFunction.Transpose(a)
End Sub

的类Initialise方法，因为它在子类中被重写，即类B。如果在类B中重写了此方法，那么类A中的方法将被调用。

父类中的c＃虚方法调用另一个在子类中重写的虚方法

1 个答案: