執行下列Visual Basic 程式片段後,所印出的結果為何?
(A)2 (B)11 (C)19 (D)28
Private Sub Form_Activate( )
Call S1(2)
End Sub
Sub S1( ByVal X As Integer )
Call S2 ( X , X , X )
Print X
End Sub
Sub S2(ByVal A As Integer , B As Integer , ByRef C As Integer )
A = A + 1 : B = B + 2 : C = A + B * C
End Sub