物件導向 / Object orientation [ VB2010 ] - 002 類別成員 001

物件導向 / Object orientation [ VB2010 ] - 002 類別成員 001

當把變數宣告為類別，在變數後打上點符號，VB 會自動列出一堆東西可以選擇，這些東西就是該類別的成員：

●VB 最簡單的類別成員就是宣告為 Public 變數：
Public Class Form1

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

    End Sub

    Class Vehicle
        Public SkinColor As Color
    End Class

End Class

●該類別的變數就多了 SkinColor 可被使用：

Public Class Form1

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim x As Vehicle = New Vehicle
        x.SkinColor = Color.Olive
        Me.BackColor = x.SkinColor
    End Sub

    Class Vehicle
        Public SkinColor As Color
    End Class
End Class

●執行後按下 Button1 後的結果：