[单项选择题] 在窗体上画一个名称为Command1的命令按钮，然后编写如下事件过程：Private Sub Command1_Click () Dim a As Integer, b As In

18 查阅

[单项选择题] 在窗体上画一个名称为Command1的命令按钮，然后编写如下事件过程：

Private Sub Command1_Click ()

Dim a As Integer, b As Integer, c As Integer

a = 1: b = 2: c = 3

Print fun2 (c, b,

A．

End Sub

Private Function funl (x As Integer, y As Integer, z As Integer)

fun1 = 2 * x + y + 3 * z

End Function

Private Function fun2(x As Integer, y As Integer, z As Integer)

fun2 = fun1(z, x, y)+ x

End Function

程序运行后，单击命令按钮，则窗体上显示的内容是A) 7

B．14

C．17

D．30

参考答案:

[分析] 对于多个过程或函数依次调用的处理和简单过程调用处理一样，本题先调用函数 fun2，而函数fun2又调用函数fun1，结果返回的顺序是从fun1到fun2，fun2计算后输出到调用的地方。只要注意函数的调用关系依次处理即可解决此类问题。