VB.net中获取二维数组的元素个数

Public Class Form1
    Private Sub Form1_Click(sender As Object, e As EventArgs) Handles Me.Click
        Dim K(3, 4) As Integer
        TextBox1.Text = K.Length       '获取整个数组的长度"Length"
        TextBox2.Text = K.GetLength(0) '获取第一维数组的长度"GetLength(0)"
        TextBox3.Text = K.GetLength(1) '获取第二维数组的长度"GetLength(1)"
    End Sub
End Class