Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Label1.Text = Label1.

Transcription

1 練習問題 1-1 Label1 Label1.Text = Label1.Text + 2 練習問題 1-2 Button2 Label1 Label1.Text = Label1.Text+ 2 Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click Label1.Text = Label1.Text - 2 練習問題 2-1 Dim a, h As Double a = Val(.Text) h = Val(.Text).Text = a * h / 2

2 練習問題 2-2 TextBox4 Dim a, b, h As Double a = Val(.Text) b = Val(.Text) h = Val(.Text) TextBox4.Text = (a + b) * h / 2 練習問題 2-3 Dim r As Double r = Val(.Text).Text = 4 * Math.PI * r ^ 2.Text = 4 * Math.PI * r ^ 3 / 3 練習問題 3-1 Private Sub _TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles.TextChanged Dim a, b As Integer

3 a = Val(.Text) b = a Mod 2 If b = 0 Then.Text = " 偶数 " Else.Text = " 奇数 " 練習問題 3-2 Private Sub _TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles.TextChanged,.TextChanged Dim a, b, c As Single a = Val(.Text) b = Val(.Text) c = (a - 100) * 0.9 If b > c * 1.1 Then.Text = " ふとりすぎです " ElseIf b < c * 0.9 Then.Text = " やせすぎです " Else.Text = " ちょうどいい体重です " 練習問題 3-3 GroupBox1 Radio RadioButton2 RadioButton3 Private Sub Radio_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Radio.CheckedChanged, RadioButton2.CheckedChanged, RadioButton3.CheckedChanged If (Radio.Checked = True) Then.Text = 5000

4 ElseIf (RadioButton2.Checked = True) Then.Text = 8000 ElseIf (RadioButton3.Checked = True) Then.Text = 練習問題 4-1 Private Sub _TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles.TextChanged Dim i, n, s As Integer n = Val(.Text) s = 1 For i = 1 To n s = s * i Next.Text = s 練習問題 4-2 TextBox4 TextBox5 Private Sub _TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles.TextChanged Dim i, s, limit As Integer limit = Val(.Text) Do i = i + 1 s = i *(i + 1) *(i + 2) Loop While s <= limit.text = i.text = i + 1

5 TextBox4.Text = i + 2 TextBox5.Text = s 練習問題 4-3 Private Sub _TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles.TextChanged,.TextChanged Dim i, j, s, n, m As Integer n = Val(.Text) m = Val(.Text) s = 0 For i = n To m For j = 1 To 9 s = s + i * j Next j.text = s 練習問題 5-1 Dim n As Integer Dim min As Integer n =.Lines.Length Dim a(n - 1) As Integer For i = 0 To n - 1

6 a(i) = Val(.Lines(i)) min = a(0) For i = 1 To n - 1 If min > a(i) Then min = a(i).text = min 練習問題 5-2 Button2 Dim j As Integer Dim n As Integer Dim work As Integer n =.Lines.Length Dim a(n - 1) As Integer For i = 0 To n - 1 a(i) = Val(.Lines(i)) For i = 0 To n - 2 For j = i + 1 To n - 1 If a(i) > a(j) Then work = a(i) a(i) = a(j) a(j) = work Next j.text = "" For i = 0 To n - 1.Text =.Text & a(i) & vbcrlf

7 Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click Dim j As Integer Dim n As Integer Dim work As Integer n =.Lines.Length Dim a(n - 1) As Integer For i = 0 To n - 1 a(i) = Val(.Lines(i)) For i = 0 To n - 2 For j = i + 1 To n - 1 If a(i) < a(j) Then work = a(i) a(i) = a(j) a(j) = work Next j.text = "" For i = 0 To n - 1.Text =.Text & a(i) & vbcrlf 練習問題 5-3 TextBox4 TextBox6 TextBox5 TextBox7 Dim i, j, k, data(2, 5), work(2), heikinn(2) As Integer Dim simei(5), worksimei As String For i = 0 To 5 simei(i) =.Lines(i) data(0, i) = Val(.Lines(i)) data(1, i) = Val(.Lines(i))

8 For i = 0 To 5 data(2, i) = data(0, i) + data(1, i) For i = 0 To 2 For j = 0 To 5 heikinn(i) = heikinn(i) + data(i, j) Next j heikinn(i) = heikinn(i) / 6 TextBox5.Text = heikinn(0) TextBox6.Text = heikinn(1) TextBox7.Text = heikinn(2) For i = 0 To 4 For j = i + 1 To 5 If data(2, i) < data(2, j) Then worksimei = simei(i) simei(i) = simei(j) simei(j) = worksimei For k = 0 To 2 work(k) = data(k, i) data(k, i) = data(k, j) data(k, j) = work(k) Next k Next j.text = "".Text = "".Text = "" TextBox4.Text = "" For i = 0 To 5.Text =.Text & simei(i) & vbcrlf.text =.Text & data(0, i) & vbcrlf.text =.Text & data(1, i) & vbcrlf TextBox4.Text = TextBox4.Text & data(2, i) & vbcrlf 練習問題 6-1 Button 1

9 Dim n, s, a As Integer FileOpen(1, "data.txt", OpenMode.Input) n = 0 s = 0 Do Until EOF(1) Input(1, a) n = n + 1 s = s + a Loop.Text = n.text = s / n FileClose() 練習問題 6-2 Button 1 Dim a, maxa As Integer Dim namae, maxnamae As String FileOpen(1, "data.txt", OpenMode.Input) maxnamae = "" maxa = 0 namae = "" Do Until EOF(1) Input(1, namae) Input(1, a) If (a > maxa) Then maxnamae = namae maxa = a Loop.Text = maxnamae.text = maxa FileClose()

10 練習問題 6-3 TextBox4 Button2 Public Structure seiseki <VBFixedString(12)> Public simei As String Public kokugo As Integer Public suugaku As Integer Public eigo As Integer End Structure Dim kojinseiseki As seiseki Dim fname As String SaveFileDialog1.ShowDialog() fname = SaveFileDialog1.FileName FileOpen(1, fname, OpenMode.Random,,, Len(kojinseiseki)) For i = 1 To 6 kojinseiseki.simei =.Lines(i - 1) kojinseiseki.kokugo = Val(.Lines(i - 1)) kojinseiseki.suugaku = Val(.Lines(i - 1)) kojinseiseki.eigo = Val(TextBox4.Lines(i - 1)) FilePut(1, kojinseiseki, i) Next FileClose(1) Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click Dim fname As String OpenFileDialog1.ShowDialog() fname = OpenFileDialog1.FileName FileOpen(1, fname, OpenMode.Random,,, Len(kojinseiseki)).Text = "".Text = "".Text = "" TextBox4.Text = "" For i = 1 To 6 FileGet(1, kojinseiseki, i)

11 .Text =.Text & kojinseiseki.simei & vbcrlf.text =.Text & kojinseiseki.kokugo & vbcrlf.text =.Text & kojinseiseki.suugaku & vbcrlf TextBox4.Text = TextBox4.Text & kojinseiseki.eigo & vbcrlf FileClose(1) 練習問題 7-1 TextBox4 Dim simei(5) As String Dim data(5, 2) As Integer nyuuryoku(simei, data) keisan(data) narabikae(simei, data) hyouji(simei, data) Private Sub nyuuryoku(byref simei() As String, ByRef data(,) As Integer) For i = 0 To 5 simei(i) =.Lines(i) data(i, 0) = Val(.Lines(i)) data(i, 1) = Val(.Lines(i)) Private Sub keisan(byref data(,) As Integer) For i = 0 To 5 data(i, 2) = data(i, 0) + data(i, 1) Private Sub narabikae(byref simei() As String, ByRef data(,) As Integer) Dim i, j, k, work As Integer Dim worksimei As String For i = 0 To 4

12 For j = i + 1 To 5 If data(i, 2) < data(j, 2) Then worksimei = simei(i) simei(i) = simei(j) simei(j) = worksimei For k = 0 To 2 work = data(i, k) data(i, k) = data(j, k) data(j, k) = work Next k Next j Private Sub hyouji(byref simei() As String, ByRef data(,) As Integer).Text = "".Text = "".Text = "" TextBox4.Text = "" For i = 0 To 5.Text =.Text & simei(i) & vbcrlf.text =.Text & data(i, 0) & vbcrlf.text =.Text & data(i, 1) & vbcrlf TextBox4.Text = TextBox4.Text & data(i, 2) & vbcrlf 練習問題 7-2 Private Sub _TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles.TextChanged Dim a As Integer a = Val(.Text).Text = hantei(a) Function hantei(byval a As Integer) As String If a >= 80 Then

13 hantei = "A" ElseIf a >= 70 Then hantei = "B" ElseIf a >= 60 Then hantei = "C" Else hantei = "D" End Function 練習問題 7-3 TextBox4 Private Sub _TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles.TextChanged,.TextChanged,.TextChanged Dim k, a As Double Dim n As Integer a = Val(.Text) k = Val(.Text) n = Val(.Text) TextBox4.Text = fukuri(a, k, n) Function fukuri(byval a As Double, ByVal k As Double, ByVal n As Integer) As Integer For i = 1 To n a = a *(1 + k / 100) fukuri = a End Function

14 練習問題 8-1 PictureBox1 Dim a As Graphics = PictureBox1.CreateGraphics() For i = 0 To 330 Step 30 a.drawpie(pens.red, 0, 0, 100, 100, i, 30) 練習問題 8-2 PictureBox1 Dim a As Graphics = PictureBox1.CreateGraphics() Dim i, xs As Integer Dim s As Double For i = 0 To 720 s = i / 360 * 2 * Math.PI xs = -50*(Math.Sin(s) + 1 / 3 * Math.Sin(3 * s) + 1 / 5 * Math.Sin(5 * s)) + 60 a.fillrectangle(brushes.red, i, xs, 2, 2)

15 練習問題 8-3 Button2 PictureBox1 PictureBox2 Button3 Button4 Dim fname As String OpenFileDialog1.Filter = "Bitmap Image *.bmp JPeg Image *.jpg Gif Image *.gif" OpenFileDialog1.ShowDialog() fname = OpenFileDialog1.FileName Dim bmap As Bitmap = New Bitmap(fname) PictureBox1.Image = bmap PictureBox2.Size = PictureBox1.Size Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click Dim fname As String OpenFileDialog1.Filter = "Bitmap Image *.bmp JPeg Image *.jpg Gif Image *.gif" OpenFileDialog1.ShowDialog() fname = OpenFileDialog1.FileName Dim bmap As Bitmap = New Bitmap(fname) PictureBox2.Image = bmap Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click Dim bmpa As Bitmap = PictureBox1.Image Dim bmpb As Bitmap = PictureBox2.Image Dim iroa As Color Dim heikin As Integer Dim j As Integer For i = 0 To bmpa.width - 1 For j = 0 To bmpa.height - 1 iroa = bmpa.getpixel(i, j) heikin = Int((Val(iroa.R) + Val(iroa.G) + Val(iroa.B)) / 3) If (heikin < 250) Then bmpb.setpixel(i, j, iroa) Next

16 Next PictureBox2.Image = bmpb Private Sub Button4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button4.Click Dim fname As String SaveFileDialog1.Filter = "Bitmap Image *.bmp" SaveFileDialog1.ShowDialog() fname = SaveFileDialog1.FileName Dim bmap As Bitmap bmap = PictureBox2.Image bmap.save(fname, System.Drawing.Imaging.ImageFormat.Bmp) 練習問題 9-1 Label1 PictureBox1 PictureBox3 PictureBox5 PictureBox7 PictureBox9 PictureBox11 PictureBox2 PictureBox4 PictureBox6 PictureBox8 PictureBox10 PictureBox12 Timer1 Enable を True Interval を 700 PictureBox1 から PictureBox6 の上に PictureBox7 から PictureBox12 を重ねる

17 Dim a As Integer Dim pic(6) As PictureBox Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load pic(1) = PictureBox7 pic(2) = PictureBox8 pic(3) = PictureBox9 pic(4) = PictureBox10 pic(5) = PictureBox11 pic(6) = PictureBox12 For i = 1 To 6 pic(i).visible = False Randomize() a = Int(Rnd() * 6) + 1 pic(a).visible = True Private Sub PictureBox7_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles PictureBox7.Click, PictureBox8.Click, PictureBox9.Click, PictureBox10.Click, PictureBox11.Click, PictureBox12.Click Label1.Text = Val(Label1.Text) + 1 Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick pic(a).visible = False a = Int(Rnd() * 6 + 1) pic(a).visible = True

18 練習問題 9-2 TextBox 2 TextBox4 TextBox7 TextBox 5 TextBox 8 TextBox6 TextBox9 Button4 Button2 Button3 Label1 Timer1 Enable を True Interval を 700 Dim f1 As Integer Dim f2 As Integer Dim f3 As Integer Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load Randomize() Private Sub Button4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button4.Click Label1.Text = Label1.Text - 1 f1 = 1 f2 = 1 f3 = 1 If (f1 = 1) Then f1 = 0 hantei() Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click If (f2 = 1) Then f2 = 0

19 hantei() Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click If (f3 = 1) Then f3 = 0 hantei() Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick If (f1 = 1) Then.Text = Int(Rnd() * 9) TextBox4.Text = Int(Rnd() * 9) TextBox7.Text = Int(Rnd() * 9) If (f2 = 1) Then.Text = Int(Rnd() * 9) TextBox5.Text = Int(Rnd() * 9) TextBox8.Text = Int(Rnd() * 9) If (f3 = 1) Then.Text = Int(Rnd() * 9) TextBox6.Text = Int(Rnd() * 9) TextBox9.Text = Int(Rnd() * 9) Private Sub hantei() If (f1 = 0 And f2 = 0 And f3 = 0) Then If (.Text =.Text And.Text =.Text) Then Label1.Text = Label1.Text + 50 If (.Text = 7) Then Label1.Text = Label1.Text + 50 If (TextBox4.Text = TextBox5.Text And TextBox4.Text = TextBox6.Text) Then Label1.Text = Label1.Text + 50 If (TextBox4.Text = 7) Then Label1.Text = Label1.Text + 50 If (TextBox7.Text = TextBox8.Text And TextBox7.Text = TextBox9.Text) Then Label1.Text = Label1.Text + 50 If (TextBox7.Text = 7) Then Label1.Text = Label1.Text + 50

20 If (.Text = TextBox5.Text And.Text = TextBox9.Text) Then Label1.Text = Label1.Text + 50 If (.Text = 7) Then Label1.Text = Label1.Text + 50 If (.Text = TextBox5.Text And.Text = TextBox7.Text) Then Label1.Text = Label1.Text + 50 If (.Text = 7) Then Label1.Text = Label1.Text + 50