单项选择题

若在窗体模块的声明部分声明了如下自定义类型和数组：
Private Type rec
Code As Integer
Caption As String
End Type
Dim arr(5)AS rec
则下面的输出语句中正确的是( )

A．Print arr.Code(2),arr.Caption(2)
B．Print arr.Code,arr.Caption
C．Print art(2).Code,arr(2).Caption
D．Print Code(2).Caption(2)

<上一题目录下一题>

热门试题

单项选择题

要求当鼠标在图片框P1中移动时，立即在图片框中显示鼠标的位置坐标。下面能正确实现上述功能的事件过程是( )

A．Private Sub P1_MouseMove(Button As Integer,Shift As Integer,X As Single,Y As Single)
Print X Y
End Sub
B．Private Sub P1_MouseDown(Button As Integer,Shift As Integer,X As Single,Y As Single)
Picture.Print X,Y
End Sub
C．Private Sub P1_MouseMove(Button As Integer,Shift As Integer,X As Single,Y As Single)
P1.Print X,Y
End Sub
D．Private Sub Form_MouseMove(Button As Integer,Shift As Integer,X As Single,Y As Single)
P1.Print X,Y
End Sub

单项选择题

计算的近似值的一个公式是π 4=1-13+15-17+…+(-1)n-112n-1。某人编写下面的程序用此公式计算并输出的近似值： Private Sub Command1_Click() PI=1 Sign=1 n=20000 For k=3 To n Sign=-Sign PI=PI+Sign k Next k Print PI*4 End Sub 运行后发现结果为3.22751，显然程序需要修改。下面修改方案中正确的是( )

A．把For k=3 To n改为For k=1 To n
B．把n=20000改为n=20000000
C．把For k=3 To n改为For k=3 To n Step 2
D．把PI=1改为PI=0

相关试题