Dim a AsInteger,当a=123:b=Str(a),则()
A.a和b均是字符型变量
B. a是字符型变量,b是数值型变量
C. a是数值型变量,b是字符型变量
D. a和b均是数值型变量
- · 有3位网友选择 B,占比37.5%
- · 有2位网友选择 A,占比25%
- · 有2位网友选择 C,占比25%
- · 有1位网友选择 D,占比12.5%
A.a和b均是字符型变量
B. a是字符型变量,b是数值型变量
C. a是数值型变量,b是字符型变量
D. a和b均是数值型变量
阅读程序: Option Base 1 Dim arr()As Integer Private Sub Form_Click() Dim i AsInteger,j As Integer ReDim arr(3,2) For i=1 To 3 Forj=1 To 2 arr(i,j)=i*2+j Next j Next i ReDim Preserve arr(3,4) For j=3 To 4 arr(3,j)=j+9 Nextj Print arr(3,2)+arr(3,4) End Sub 程序运行后,单击窗体,输出结果为
A.21
B.13
C.8
D.25
A.a和b均是字符型变量
B.a是字符型变量,b是数值型变量
C.a是数值型变量,b是字符型变量
D.a和b均是数值型变量
设有声明语句
Option Base 1
Dim b(-1 To 10, 2 To 9, 20) As Integer
则数组b中全部元素的个数()。
A.2310
B.1920
C.1500
D.1658
A.m<=100
B.m≤100
C.m>=1
D.m≥1.
以下有关数组定义的语句序列中,错误的是()。
A.Static arr1(3) arr1(1)=100 arr1(2)="Hello" arr1(3)=123.45
B.Dim arr2() AsInteger Dim size As Integer Private Sub Command2_Click () size=InputBox("输入:") ReDim arr2(size) …… EndSub
C.Option Base 1 Private Sub Command3 Click() Dim art3(3) As Integer …… End Sub
D.Dim n As Integer Private Sub Command4 Cliok() Dim arr4(n)As Integer …… End Sub
编写如下事件过程: Option Explicit Private Sub Form_Click() Dim Str As String, I As Integer Open "examp" For Output As 1 For I=1 To 5 Str=Chr(I+64) Print #1,Str; Next I Close 1 Open”examp',For lnput AS 2 Str=Input(10,#2) Print Str; Close 2 End Sub 程序运行后,单击窗体,则窗体上显示的内容是
A.ABCDE
B.96
C.65
D.abcde
设有以下函数过程:
Function fun(m As Integer) As Integer
Dim k As Integer, sum As Integer
sum = 0
For k = m To 1 Step -2
sum = sum + k
Next k
fun = sum
End Function
若在程序中用语句 s = fun(10) 调用此函数,则s的值为______。
编写如下事件过程: Option Base 1 Private Sub Form Click() Dim x1()As Integer Dim i As Integer Dim s As Integer ReDim x1(3) For i = 1 To UBound(x1) x1(i)=i + 1 Next i Call sub1(x1) For i = 1 To UBound(x1) s = s + x1(i) Next i Print s End Sub Private Sub sub1(n()As Integer) Dim i As Integer ReDim Preserve n(5) For i = 3 To 5 n(i)=n(i-1)*2 Next i End Sub 程序运行后,单击窗体,则窗体上显示的内容是
A.6
B.12
C.24
D.47
A.1*f
B.-l*f
C.1*i
D.-1*i
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