VB2010（9）_IF语句

Public Class Form1

    Private Sub btnIf_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnIf.Click
        Dim intNumber As Integer = 27
        If intNumber = 1000 Then
            MessageBox.Show("'intNumber' is,indeed,1000!", "Simple If")
        ElseIf intNumber = 27 Then
            MessageBox.Show("'intNumber' is 27!", "Simple If")
        Else
            MessageBox.Show("'intNumber' is not indeed 1000!", "Simple If")
        End If
    End Sub
End Class