运行以下的程序,单击命令按钮Command1,则在文本框中显示的内容是( )。Private Sub Command1_Click()Dim x As Integer, y As Integerx = 3: y = 5Text1.Text = ""Call p1(x, y)Text1.Text = Str(x) + " " + Str(y)End SubSub p1(a As Integer, b As Integer)a = a + bb = a - bEnd Sub
A. 8 3
B. 3 5
C. 8 -2
D. 3 8
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下面定义模块级变量a的语句中错误的是()。
A. Dim a%
B. Private a%
C. Private a As Integer
D. Static a%
窗体上有一个名称为Command1的命令按钮,其中部分代码如下:Private Sub Command1_Click()Dim a(10)As IntegerDim n As Integer……Call calc(a,n)……End Subcalc过程的首行应该是()。
A. Sub calc(x() As Integer, n As Integer)
B. Public Sub calc(x() As Integer)
C. Private Sub calc(a(n) As Integer, n As Integer)
D. Public Sub calc(a As Integer, n As Integer)
设有如下程序:Sub f(x As Integer, ByVal y As Integer)x=2*xy=y+xEnd SubPrivate Sub Command1_Click()Dim a As Integer, b As Integera=6:b=35Call f(a, b)Print a, bEnd Sub程序运行后,单击命令按钮Command1,输出结果为()。
A. 647
B. 1247
C. 635
D. 1235
设有一个命令按钮Command1的事件过程以及一个函数过程。程序如下:Private Sub Command1_Click()Static x As Integerx=f(x+5)ClsPrint xEnd SubPrivate Function f(x As Integer)As Integerf=x+xEnd Function连续单击命令按钮3次,第3次单击命令按钮后,窗体上显示的计算结果是()。
A. 10
B. 30
C. 60
D. 70