单击命令按钮时,下列程序段的执行结果是()。 Private Sub Command1 Click() Dim a As Integer,b As Integer,C As Integer a=2:b=4:c=6 Call S1(a.b) Print"a=";a;"b=";b;"c=";c Call S2(a,b) Print"a=";a;"b=";b;"c=";c; End Sub Private Sub S1(X.As Integer,Y As Integer) Dim C As Integer x=2*X:y=y+2:c=x+y End Sub Sub S2(x As Integer,ByVal Y As Integer) Dim e As Integer x=2*x:Y=Y+2:e=x+y End Sub
A. a=4 b=6 c=6 a=4 b=6 c=6
B. a=8 b=6 c=6 a=8 b=6 c=6
C. a=4 b=6 c=6 a=8 b=6 c=6
D. a=8 b=6 c=6 a=4 b=6 c=6