下面程序: Private Sub Form_Click()Dim x,y,z A
问题:
下面程序:
Private Sub Form_Click()
Dim x,y,z As Integer
x=5
y=7
z=0
Call P1(x,y,z)
Print Str(z)
End Sub
Sub Pl(ByVal a As Integer,ByVal b As Integer,c As Integer)
c=a+b
End Sub
运行后的输出结果为______。
A.0
B.12
C.Str(z)
D.显示错误信息