下面程序:Private Sub Form_Click() Dim x,y,z A
题型:单项选择题
问题:
下面程序:Private Sub Form_Click() Dim x,y,z As Integer x=5 y=7 2=0 Call P1(x,y,z) Print Str(z) End Sub Sub P1(By Va1 a As Integer,By Va1 b As Integer,c As Integer)c=a+b EndSub 运行后的输出结果为_________。
A.0
B.12
C.Str(
D.显示错误信息