2023年计算机二级VB编程题目含答案.doc

Private Sub Command1_Click()
Dim n As Integer，i As Integer，s As Double
n = Val(Text1.Text)
s = 0
For i = 1 To n
s = s + i ^ 2
Next i
Text2.Text = s
End Sub

Private Sub Command1_Click()
''' 不得删除本行注释
Dim i As Integer
Open App.Path & "\" & "yssj.txt" For Input As #1
For i = 1 To 10
Input #1，a(i)
Next i
Close #1
End Sub
Private Sub Command2_Click()
''' 不得删除本行注释
Dim i As Integer
Text1.Text = ""
For i = 1 To 10
If a(i) Mod 3 = 2 Then
Text1.Text = Text1.Text & Str(a(i))
End If
Next i
End Sub

Private Sub command1_Click()
'''不得删除本行注释
Dim a As Integer，b As Double，i As Integer，n As Integer
n = Val(Text1.Text)
a = 0
b = 0
For i = 1 To n
a = a + i
b = b + a
Next i
Text2.Text = b
End Sub

Private Sub Command1_Click()
'''不得删除本行注释
Dim i%，xh$，xm$
Open App.Path & "\" & "Xhxm.txt" For Output As #1
For i = 1 To 3
xh = InputBox("请输入学号")
xm = InputBox("请输入姓名")
Write #1，xh，xm
Next i
Close #1
End Sub
Private Sub Command2_Click()
'''不得删除本行注释
Dim s as string
Open App.Path & "\" & "Xhxm.txt" For Input As #2
Do While Not EOF(2)
Line Input #2，s
Text1.Text = Text1.Text & s & vbCrLf
Loop
Close #2
End Sub

Private Sub Command1_Click()
‘”读取文献”按钮代码
'''不得删除本行注释
Dim st As String
Text1.Text = ""
Open App.Path & "\" & “jmwb.txt" For Input As #1
While Not EOF(1)
Input #1，st
Text1.Text = Text1.Text + st + vbCrLf
Wend
Close #1
End Sub
Private Sub Command2_Click()
Dim s As String，co As String，c As String,
Dim n As Integer，i As Integer，p As Integer
s = Trim(Text1.Text)
n = Len(s)
co = ""
For i = 1 To n
c = Mid(s，i，1)
p = Asc(c) + 5
co = co + Chr(p)
Next i
Text2.Text = co
End Sub

Private Sub command1_click()
'''不得删除本行注释
For N = 1 To 15
x(N) = Int(Rnd * 91 + 10)
Text1.Text = Text1.Text + Str(x(N))
Next N
End Sub

Private Sub Command2_Click()
'''不得删除本行注释
Dim m As Integer，K As Integer
For N = 1 To 15
For m = N + 1 To 15
If x(m) > x(N) Then
K = x(N)
x(N) = x(m)
x(m) = K
End If
Next m
Text2.Text = Text2.Text + Str(x(N))
Next N
End Sub

Private Sub Command1_Click()
Dim char As String * 1
char = Trim(Text1.Text)
If Not IsNumeric(char) Then
If (Asc(char) >= 65 And Asc(char) <= 90) Or _
(Asc(char) >= 97 And Asc(char) <= 120) Then
Label1.Caption = "输入是字母"
Else：Label1.Caption = "输入是其他符号"
End If
Else：Label1.Caption = "输入是数字"
End If
End Sub

Private Sub Command1_Click()
Text1.Text = UCase(Text1.Tag)
End Sub

Private Sub Command2_Click()
Text1.Text = LCase(Text1.Tag)
End Sub

Private Sub Command3_Click()
Text1.Text = Text1.Tag
End Sub

Private Sub Text1_KeyUp(KeyCode As Integer，Shift As Integer)
'对于文本框控件中输入每次键盘按键弹起事件做一次文本内容保留
Text1.Tag = Text1.Text '用Text1.Tag属性作为保留textbox控件文本内容临时存储区
End Sub

Private Sub command1_Click()
''' 不得删除本行注释
Dim a As Integer，b As Integer，c As Integer
Dim max As Integer，min As Integer
a = Val(Text1.Text)
b = Val(Text2.Text)
c = Val(Text3.Text)
max = a + b + Abs(a - b)
max = max / 2
min = a + b - Abs(a - b)
min = min / 2
max = max + c + Abs(max - c)
max = max / 2
min = min + c - Abs(min - c)
min = min / 2
Text4.Text = max
Text5.Text = min
End Sub

Private Sub Command1_Click()
Dim a As Integer
If Not IsNumeric(Text1.Text) Then
MsgBox "请输入数字！"，48，"输入不是数字"
Else a = Val(Text1.Text)
If (a Mod 4 = 0 And a Mod 100 <> 0) Or a Mod 400 = 0 Then
Text2.Text = "闰年"
Else：Text2.Text = "非闰年"
End If
End if
Text1.SetFocus
Text1.SelStart = 0
Text1.SelLength = Len(Text1.Text)
End Sub

Private Sub Command1_Click()
''' 不得删除本行注释
Dim n As Integer，i As Integer
n = Val(Text1.Text)
If n < 0 Or (Not IsNumeric(Text1.Text)) Then MsgBox "请输入正整数"，48，"输入不是正整数"
Open App.Path & "\" & "jfwj.txt" For Output As #1
For i = 1 To n
Print #1，String(i，"*")
Next i
Close #1
End Sub
Private Sub Command1_Click()
''' 不得删除本行注释
Dim i As Integer
For i = 1 To 200
If i Mod 3 = 0 And i Mod 7 = 0 Then
Text1.Text = Text1.Text + Str(i)
End If
Next
End Sub

Private Sub Command1_Click()
''' 不得删除本行注释
Dim sum As Single，i As Integer
Open App.Path & "\" & "Jsdata.txt" For Input As #1
For i = 1 To 15
Input #1，Arr(i)
Next i
Close #1
If Op1 Then
T1.Text = Aaa
End If
If Op2 Then
T1.Text = Bbb
End If
End Sub

Private Sub Command1_Click()
''' 不得删除本行注释
Dim i As Integer，n As Integer，s As Integer
n = Val(Text1.Text)
If n < 0 Or (Not IsNumeric(Text1.Text)) Then MsgBox "请输入正整数"，48，"输入不是正整数"
s = 0
For i = 1 To n
If i Mod 3 = 0 Then
s = s + i
End If
Next i
Text2.Text = s
End Sub

Private Sub Command1_Click()
''' 不得删除本行注释
Dim a As Integer
a = Val(Text1.Text)
Text2.Text = zh(a)
‘ zh过程在原本程序代码中已经有了～直接可用
End Sub

Private Sub Command1_Click()
''' 不得删除本行注释
Dim x As Double
Dim y As Double
x = Val(Text1.Text)
If x < 10 Then
y = x - 1
ElseIf x < 20 Then
y = 2 * x - 1
Else：y = 3 * x - 1
End If
Text2.Text = y
End Sub

Private Sub Command1_Click()
''' 不得删除本行注释
Text1.Text = ""
Open App.Path & "\" & "zfwj.txt" For Input As #1
For i = 1 To 10
Input #1，a(i)
Text1.Text = Text1.Text & " " & a(i)
Next i
Close #1
End Sub

Private Sub Command2_Click()
''' 不得删除本行注释
Dim t As String
Text2.Text = ""
For i = 1 To 10
t = a(i)
a(i) = a(10 - i + 1)
a(10 - i + 1) = t
Text2.Text = Text2.Text & " " & a(i)
Next i
End Sub

Private Sub Command1_Click()
Dim a As Integer
Dim b As Integer
a = Val(Text1.Text)
b = Val(Text2.Text)
Label1.Caption = Int(Rnd() * (b - a + 1) + a)
Label2.Caption = Int(Rnd() * (b - a + 1) + a)
Label3.Caption = Int(Rnd() * (b - a + 1) + a)
End Sub

Private Sub Command1_Click()
Dim s as string
Open App.Path & "\" & "Bdata.txt" For Input As #1
Do While Not EOF(1)
Line Input #1，s
Text1.Text = Text1.Text + s + Chr(13) + Chr(10)
Loop
Close #1
End Sub

Private Sub Command1_Click()
'''不得删改本行注释
Dim n As Integer
n = Val(Text1.Text)
If n < 100 Or n > 999 Then
MsgBox "请输入三位正整数"，，"输入出错"
Else：Text2.Text = Int(n Mod 10)
Text3.Text = Int((n Mod 100) / 10)
Text4.Text = Int(n / 100)
End If
End Sub

Private Sub Command1_Click()
'产生按钮代码
i = List1.ListIndex
For i = 0 To 9
List1.AddItem Int(90 * Rnd + 10)
Next i
End Sub
Private Sub Command3_Click() ’清除按钮代码
List1.Clear
List2.Clear
End Sub
Private Sub Command2_Click()
'''不得删改本行注释
Dim n As Double，j As Integer
i = List1.ListIndex
For i = List1.ListCount - 1 To 0 Step -1
n = Val(List1.List(i))
If n Mod 2 = 1 Then
List2.AddItem n
List1.RemoveItem i
End If
Next i
End Sub

Private Sub Command1_Click()
‘”读入数据”按钮代码
'''不得删除本行注释
Dim st As String
Text1.Text = ""
Open App.Path & "\" & "yy.txt" For Input As #1
While Not EOF(1)
Input #1，st
Text1.Text = Text1.Text + st + vbCrLf
Wend
Close #1
End Sub

Private Sub Command2_Click()
'''不得删除本行注释
Dim x As String，y As String * 1，n As Integer，i As Integer，p As Integer
x = Trim(Text1.Text)
n = Len(x)
p = 0
For i = 1 To n
y = UCase(Mid(x，i，1))
If y >= "A" And y <= "Z" Then
p = p + 1
End If
Next i
Label1.Caption = "共" & p & "个字母"
End Sub

Private Sub Command1_Click()
'''不得删除本行注释
Dim n As Integer，k As Integer，i As Integer
For n = 200 To 300
k = Int(Sqr(n))
For i = 2 To k
If n Mod i = 0 Then Exit For
Next i
If i > k Then List1.AddItem n
Next n
End Sub