在vb.net中嵌套/退出

For i As Integer = 1 To 5
    For j As Integer = 1 To 5
        Console.Write(i.ToString() & " " & j.ToString() & " ")
    Next
    Console.WriteLine()
Next

1 1 1 2 1 3 1 4 1 5 
2 1 2 2 2 3 2 4 2 5 
3 1 3 2 3 3 3 4 3 5 
4 1 4 2 4 3 4 4 4 5 
5 1 5 2 5 3 5 4 5 5 

For i As Integer = 1 To 5
    If i = 3 Then
        Exit For
    End If
    Console.WriteLine(i)
Next