在窗体上画一个命令按钮,然后编写如下代码。运行程序后,单击命令按钮,依次在输人对话框中输入2,7,
A.19
B.21
C.42
D.19
A.19
B.21
C.42
D.19
在窗体上画一个命令按钮,然后编写如下代码: Private Sub Command1_Click() 0pen "d:\vb\test.txt "For Input As #1 Print LOF(1) Close #1 End Sub 假设文件d:\vb\test.txt的内容为I am a student.,那么程序运行后,单击命令按钮,其输出结果为______.
A.13
B.14
C.15
D.16
在窗体上画一个命令按钮(其名称为Command1),然后编写如下代码:
Private Sub Command1 Click()
Dim a
a=Array(1,2,3,4)
i=3:j=1
Do While>=0
s=s+a(i)*j
i=i-1
j=j*10
Loop
Print S
End Sub
运行上面的程序,单击命令按钮,则输出结果是()。
A.4321
B.123
C.234
D.1234
在窗体上画一个命令按钮(其Name属性为Command1),然后编写如下代码: Private Sub Command1_Click() Dim Arr1(10)As Integer,arr2(10)As Integer n=3 For i=1 To 5 Arr1(i)=i arr2(n)=2*n+i Next i Print arr2(n);Arr1(n) End Sub 程序运行后,单击命令按钮,输出结果是 ______。
A.11 3
B.3 11
C.13 3
D.3 13
在窗体上画一个名称为Command1的命令按钮,然后编写如下代码: Option Base 1 Private Sub Command1_Click() d=0 c=10 x=Array(10,12,21,32,24) For i=1 To 5 If x(i)>c Then d=d+x(i) c=x(i) Else d=d-c End If Next I Print d End Sub 程序运行后,如果单击命令按钮,则在窗体上输出的内容为 ______。
A.89
B.99
C.23
D.77
在窗体上画一个名称为Command1的命令按钮,然后编写如下代码: Option Base 1 Private Sub Command1 Click() d = 0 :c = 10 x=Array(10,12,21,32,24) For i = 1 To 5 If x(i) > c Then d = d + x(i) c = x(i) Else d = d-c End If Next i Print d End Sub 程序运行后,如果单击命令按钮,则在窗体上输出的内容为
A.89
B.99
C.23
D.77
在窗体上画一个命令按钮(其Name属性为Command1),然后编写如下代码: Option Base 1 Private Sub Command1_Click() Dim a a = Array(1, 2, 3, 4) s = 1234 j = 1000 For i = 1 To 4 s = s + a(i) * j j = j * 10 Next i Print S End Sub运行上面的程序,单击命令按钮,其输出结果是______。
A.4321
B.2468
C.34
D.12
在窗体上画一个命令按钮和一个标签,其名称分别为Command1和Labell,然后编写如下代码:
Sub S(x As Integer,Y As Integer)
Static z As Integer
y=x*x+z
z=y
End Sub
Private Sub Command1_Click()
Dim i As Integer,z As Integer
m=0
z=0
For i=1 To 3
S i,z
m=m+z
Next i
Label1.Caption=Str(m)
End Sub
程序运行后,单击命令按钮,在标签中显示的内容是
A.50
B.20
C.14
D.7
窗体上画一个命令按钮,然后编写如下代码:Private Type Record ID As Integer Name As String * 20End TypePrivate Sub command1 _ Click(Open "c: \file. txt" for Input As MaxSize = LOF (1) for NextChar =MaxSize To Step-1 Seek #1, NextChar MyChar=Input(1,#1) Next NextChar Print EOF(1) Close #1 End Sub程序运行后,单击命令按钮,其输出结果为______。
A.True
B.False
C.0
D.Null
在窗体上画1个命令按钮和1个文本框,其名称分别为Commandl和Textl,然后编写如下代码:
Dim Save All As String
Private Sub Commandl_C1iCk()
Text1.Text=Left(UCase(SaveAU),4)
End Sub
Private Sub Textl_KeyPress(KeyAscii As Intege)
SaveA11=Save All+Chr(KeyAscii)
End Sub
程序