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

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 P1(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


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