Timothy

陣列(使用herp空間)

1.同類型資料集合

2.任何型別均可定義

3.決定元素數目,動態配置記憶體(Herp空間)

4.一律為參考型別  參考型別:STACK定義位址都指向同一組HERP內容

5.元素數量不可變(順序性)

6.陣列宣告時會自動 binding ArrayClass 的Shered Method的Shered Method

列：

 

Module TestArray
    '值行別陣列
    Public Sub Main()
        '區域變數在stack
        '陣列元素在Heap堆積(堆六個元素) 一定有預設值
        Dim iar(5) As Int32
        'Binding(繫結) Sytem.Array
        System.Console.WriteLine(iar.Length)
        '傳遞陣列(陣列參考型別 傳遞位址)
        passing(iar)
        '順序迴圈 陣列元素從零開始
        For i As Int32 = 0 To iar.Length - 1
            System.Console.WriteLine(iar(i))
        Next

        Dim iar2() As Int32 = iar
        iar2(2) = 1000
        For i As Int32 = 0 To iar.Length - 1
            System.Console.WriteLine("New:" + iar(i).ToString())
        Next

    End Sub

    '處理陣列
    Private Sub passing(ByVal iar2() As Int32)
        System.Console.WriteLine(iar2.GetHashCode())
        For i As Int32 = 0 To iar2.Length - 1
            iar2(i) = (i + 1) * 100
        Next
    End Sub

End Module

陣列初始化

 

Module TestArrayInitlailzer
    '陣列定義同時元素初始化
    Public Sub Main()
        'iar(不設定數量) 
        Dim iar() As Int32 = {1, 2, 3, 4, 5, 6, Convert.ToInt32("A"c)}
        '逐一參考
        'Dim i As Int32
        For Each i As Int32 In iar
            System.Console.WriteLine(i)
        Next

        Dim iar2() As Int32 = Nothing
        '.....準備值
        iar2 = New Int32() {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}
        For Each i As Int32 In iar2
            System.Console.WriteLine(i)
        Next

    End Sub
End Module