[单项选择题] 单击一次命令按钮之后,在对话框中输入12,2,34,23,窗体中的输出结果为______ 。 Private Sub Command1_ Click ()Dim a(4) As In
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[单项选择题] 单击一次命令按钮之后,在对话框中输入12,2,34,23,窗体中的输出结果为______ 。 Private Sub Command1_ Click ()Dim a(4) As IntegerFor i = 1 To 4 a (i) = Val (InputBox (“请输入元素”))Next iplus a(1), a(2), a(3) End Sub Sub plus(first As Integer, second As Integer, third As Integer, Optional forth)n = first + second + thirdIf Not IsMissing (forth) Then n = n + forthEnd If Print n End Sub
A.14
B.71
C.48
D.37
参考答案: