大学vb上机及课后习题答案实验3-4
VB程序设计教程实验指导与习题解答上机答案
自测1程序代码Private Sub Command1_Click() = + 3End SubPrivate Sub Command2_Click() = TrueEnd SubPrivate Sub Command3_Click() = TrueEnd SubPrivate Sub Command4_Click() = 10= False= FalseEnd Sub初始窗口：单机放大之后窗口：单机下划线之后窗口：单击加粗之后窗口：单击还原之后窗口：自测2程序代码Private Sub Command1_Click() Label1 = "visual basic"Text1 = "程序设计题"End SubPrivate Sub Command2_Click() Text1 = "visual basic"Label1 = "程序设计题"End Sub初始窗口：单击显示之后窗口：单击交换之后的窗口：自测题3Private Sub Command1_Click() = *End SubPrivate Sub Command2_Click() = + 30= + 20= 1End Sub初始窗口：单击缩小两倍之后的窗口：单击向右下角移动之后的窗口：自测题4程序代码Private Sub Command1_Click() = "VB学习"Print "简单的VB程序设计" End SubPrivate Sub Command2_Click() ClsPrivate Sub Command3_Click() EndEnd SubPrivate Sub Command3_Click() EndEnd Sub初始化窗口：单击显示之后的窗口：单击清除之后的窗口：单击退出之后的窗口：程序代码Private Sub Command1_Click() = ""= ""End SubPrivate Sub Command2_Click() = Val + ValEnd SubPrivate Sub Command3_Click() EndEnd Sub初始化窗口：单击运算之后窗口：单击清除之后的窗口：单击退出之后的窗口：自测练习1Private Sub Command1_Click() Dim a$a == Left(a, 2)End SubPrivate Sub Command2_Click() a == Right(a, 2)End SubPrivate Sub Command3_Click() = &End Sub初始窗口界面输入字符串截取前两个字符截取后两个字符字符串连接自测练习2Private Sub Form_Click()Dim a%, b%, c%, d%, e%, f%, g%, h%, i%, j%, k%, l% a = 7349e = a Mod 10 '个位d = (a \ 10) Mod 10 '十位c = (a \ 100) Mod 10 '百位b = a \ 1000 '千位i = (e + 7) Mod 10 '个位h = (d + 7) Mod 10 '十位g = (c + 7) Mod 10 '百位f = (b + 7) Mod 10 '千位j = ii = f '交换后的个位f = j '交换后的千位k = hh = g '交换后的十位g = k '交换后的百位l = f * 1000 + g * 100 + h * 10 + i= FalsePrint "加密前的4位整数是7439"; (Chr(10)); "加密后的结果是"; lEnd Sub初始界面单击窗体运行后的界面自测练习1Private Sub Form_Click()Dim a%, b%, c%, d%, e%, f!a = Val(InputBox("输入第一个数", "输入一个数", 8))b = Val(InputBox("输入第一个数", "输入一个数", 7))c = a + bd = a - be = a * bf = a / bf = Fix(f * 100 + / 100MsgBox "x+y=" & c & Chr(10) & "x-y=" & d & Chr(10) & "x*y=" & e & Chr(10) & "x/y=" & f, , "输出的结果"End Sub自测练习2Private Sub Form_Click()Dim a%, b%, c%, d%, e%, f!a = Val(InputBox("输入第一个数的值"))b = Val(InputBox("输入第二个数的值"))c = Val(InputBox("输入第三个数的值"))d = Val(InputBox("输入第四个数的值"))e = a + b + c + df = e / 4Print "和="; ePrint "平均值="; fEnd Sub自测练习3Private Sub Form_Click()Dim h%, f%, x%, y%h = Val(InputBox("输入总头数"))f = Val(InputBox("输入总脚数"))x = (4 * h - f) / 2y = (f - 2 * h) / 2Print "笼中鸡的头数为"; x; "只"Print "笼中兔的头数为"; y; "只"End Sub自测练习1：Private Sub Form_Click()Dim a%, b%, c%a = Val(InputBox("请输入第一条边", "边长"))b = Val(InputBox("请输入第二条边", "边长"))c = Val(InputBox("请输入第三条边", "边长"))If a + b > c And a + c > b And b + c > a ThenIf a * a + b * b = c * c Or a * a + c * c = b * b Or b * b =c * c = a * a ThenPrint "直角"ElseIf a = b And b = c ThenPrint "等边三角形"ElseIf a = b Or a = c Or b = c Then Print "等腰三角形"ElsePrint "一般三角形"End IfElsePrint "不是三角形"End IfEnd Sub不是三角形运行结果：初始窗口：输入三条边：运行结果：直角三角形运行结果：等边三角形运行结果如下：等腰三角形：一般三角形自测练习2：Private Sub Form_Click()Dim a%, b!a = Val(InputBox("请输入"))If a Mod 2 = 0 And a Mod 3 = 0 And a Mod 5 = 0 Then b = Sqr(a)Print a, bElseEndEnd IfEnd Sub初始化窗口：输入一个数：运行结果：自测练习3Private Sub Command1_Click()Dim a%, b%a = ValSelect Case a > 0Case a < 20MsgBox "行李费为元/kg", , "行李费"Case a >= 20 And a < 50MsgBox "行李费为元/kg", , "行李费"Case a >= 50 And a < 100MsgBox "行李费为元/kg", , "行李费"Case Elseb = * 100 + (a - 100) * : MsgBox "行李费为" & b & "元", , "行李费"End SelectEnd Sub初始窗口：输入10：输入25：输入55：输入120：自测练习1Option Base 1Private Sub Form_Click()Dim i%, a(1 To 20) As Integer a(1) = 1: a(2) = 1Print a(1);Print a(2);For i = 3 To 10a(i) = a(i - 1) + a(i - 2) Print a(i);Next iPrintFor i = 11 To 16a(i) = a(i - 1) + a(i - 2) Print a(i);Next iPrintFor i = 17 To 20a(i) = a(i - 1) + a(i - 2) Print a(i);Next i初始界面：运行结果界面：自测练习2Option Base 1Private Sub Form_Load()= 10000= 5000End SubPrivate Sub Command1_Click()Dim i%, j%, t%, a(1 To 4, 1 To 4) As Integer For i = 1 To 4For j = 1 To 4a(i, j) = Int(Rnd * 10) + 1a(i, j);Next j"对角线的元素如下" For i = 1 To 4a(i, i);Next iFor i = 1 To 4a(i, 5 - i);Next iFor i = 1 To 4t = a(1, i)a(1, i) = a(4, i) a(4, i) = tNext iFor i = 1 To 4t = a(i, 2)a(i, 2) = a(i, 3) a(i, 3) = tNext iFor i = 1 To 4For j = 1 To 4a(i, j);Next iEnd Sub运行初始界面：运运行结果界面：自测练习1Sub itostr(a As Integer)Dim b%, c$a = ValWhile a >= 1c = Chr(a Mod 10 + 48) & ca = a \ 10Wend= c End SubPrivate Sub Command1_Click()Dim a As Integera = ValCall itostr(a)End Sub运行初始界面：运行结果界面：验证其他数字：自测练习2：Public Function area(n) As Double Dim c#, d#, e#, s#n = Valc = (1 - 0) / nWhile e <= 1d = I * c:e = (I + 1) * cs = s + (Sin(d) + Sin(e)) * c / 2 I = I + 1Wendarea = sEnd FunctionPrivate Sub Command1_Click()Dim s As DoubleCall area(n)= area(n)End Sub运行初始界面：运行结果：自测练习3Private Sub Form_click()n = Val(InputBox("请输入n的值")) x = Val(InputBox("请输入x的值")) Print "e的值="; es(n, x)End SubPrivate Function es(n, x)Dim a As Double, b As Double, c As Double, i As Integer a = 1: b = 1: c = 1For i = 1 To na = x * a:b = b * i:c = c + a / bNext ies = cEnd Function运行初始界面：输入数据：运行结果：自测练习4：For i = 1 To 4For j = i + 1 To 5If a(i) > a(j) Thent = a(i): a(i) = a(j): a(j) = tEnd IfNext jNext iFor i = 1 To 5Print a(i); " ";Next iFor i = 1 To 5If Y < a(i) Thent = a(i): a(i) = Y: Y = tEnd IfNext iFor i = 1 To 6a(6) = tNext iEnd FunctionPrivate Sub Command1_Click()Dim i#, a%(1 To 6), Y%Y = Val(InputBox("输入y的值", "输入数据")) Insertfun a%(), YPrintFor i = 1 To 6Print a(i); " ";Next iEnd Sub运行初始界面：插入数据：运行结果：蓝志鹏资源1102 实验8自测练习1：Private Sub Command1_Click() If = 1 Then= "报名参加羽毛球比赛"End IfIf = 1 Then= "报名参加乒乓球比赛"End IfIf = 1 And = 1 Then= "报名参加羽毛球，乒乓球比赛" End IfEnd Sub运行初始界面：运行结果：自测练习4：Private Sub Form_Load()= 2= 24= "黑体"= &HFF&End SubPrivate Sub Option1_Click()= "我是学生"End SubPrivate Sub Option2_Click() = "我是教师"End SubPrivate Sub Option3_Click() = "我是工人"End SubPrivate Sub Option4_Click() = "我是农民"End Sub运行初始界面：运行结果：自测练习6：Private Sub Command1_Click() For i = 0 To - 1If (i) = ThenExit ForEnd IfNext iIf i > - 1 ThenEnd IfEnd SubPrivate Sub Command2_Click() If <> -1 ThenFor i = 0 To - 1If (i) = TheniEnd IfExit ForNext iEnd IfEnd SubPrivate Sub Command3_Click()End Sub运行初始界面:自测练习7：Private Sub Command1_Click() = 1= TrueEnd SubPrivate Sub Form_Load()= 20= 20= 20= 20End SubPrivate Sub Timer1_Timer()= + 10lbltem =If VSbwd >= 100 Then lbltishi = "水开了"= FalseEnd IfEnd Sub运行初始界面：运行结果：自测练习1：Private Sub myhelp_Click()End SubPrivate Sub mymenu1_Click() = "百货大楼"End SubPrivate Sub mymenu2_Click() = "利客隆"End SubPrivate Sub mymenu3_Click() = "稻香村"End Sub运行初始界面：运行结果界面：自测练习2：Private Sub Dis_Click()= "菜单程序设计"= 20= "黑体"End SubPrivate Sub Hid_Click()= FalseEnd Sub运行初始界面：运行结果界面：自测练习3：Private Sub vbhelp_Click()r = MsgBox("帮助", , "程序设计题") End SubPrivate Sub Vbnew_Click()r = MsgBox("新建", , "程序设计题") End SubPrivate Sub vbopen_Click()r = MsgBox("打开", , "程序设计题") End SubPrivate Sub vbsave_Click()r = MsgBox("存盘", , "程序设计题") End Sub运行初始界面：运行结果：自测练习4：Private Sub Command1_Click() = 1End Sub运行初始界面：运行结果：自测练习1：Private Sub Command1_Click() Dim a As String, n%, i%, j% Open "E:\" For Input As #1 Input #1, an = Len(a)j = 0For i = 1 To nIf Mid(a, i, 1) = "%" Then j = j + 1 Next iClose #1Open "E:\" For Output As #1Print #1, jClose #1End Sub运行初始界面：运行结果：自测练习3：Private Sub Form_Click()Dim x$Open "e:\" For Input As #1Do While Not EOF(1)Line Input #1, x$LoopClose #1Open "e:\" For Append As #1Print #1, x$Close #1End Sub运行初始界面：自测练习4Private Sub Form_load()Print " 26个英文字母"PrintPrint " a b c d e f g h i j k l m n o p q r s t u v w x y z"Print "字母个数分别为"End SubPrivate Sub Form_Click()Open "E:\" For Output As #1文本$ = InputBox("请输入文本")n = UCase(文本$)Print #1, nClose #1Dim a%()Open "E:\" For Output As #1 For i = 1 To Len(n)ReDim Preserve a(1 To 26)j = Asc(Mid(n, i, 1)) - 64a(j) = a(j) + 1Next iClose #1For j = LBound(a) To UBound(a) Print a(j);Next jEnd Sub。
青岛科技大学VB上机实验答案
实验一 VB环境和简单应用程序设计（4个学时）一、实验目的1.熟悉Visual Basic集成开发环境的使用。
2.掌握建立、编辑和运行简单的Visual Basic应用程序的全过程。
3.掌握窗体对象的属性、事件和方法。
二、实验内容1. 在VB的集成开发环境中实现如下的操作：1）、将“标准”工具栏去掉后再添加上，将“编辑”工具栏添上再去掉。
2)、分别利用“菜单”和“工具栏”中的命令打开“属性窗口”、“工程资源管理器窗口”3）、将“窗体布局窗口“的”启动位置“设置成“手工”。
4)、在工具箱中任意添加一个Active X 控件。
5）、在工程1中增加两个窗体：Form1、Form26）、在工程1中增加两个标准模块：Module1 、Module27）、在工程1中增加一个类模块：Class18）、在工程资源管理器中将Form2、Module2 删除。
9）、在在工程资源管理器中利用“切换文件夹”按钮隐藏或显示对象的文件夹10）、将代码窗口中的字体大小改为18号字。
2．设计一个窗体，窗体内有1个文本框和3个命令按钮控件。
要求：当按“显示”按扭时，在文本框内显示“欢迎来到青岛科技大学！”一串红色、四号、隶书字符串。
当按“清除”按钮时，清除文本框内全部信息；当按“退出”按钮时，结束程序运行。
1) 创建界面（将设计好的界面截下来粘贴在下面）3)代码设计Private Sub Command1_Click()T ext1.T ext = "欢迎来到青岛科技大学！"End SubPrivate Sub Command2_Click()T ext1.T ext = ""End SubPrivate Sub Command3_Click()EndEnd Sub4)调试过程记录（错误情况及改正方法，不得少于三条）1、text1与text颠倒了位置通过查课本改正3. 设计一个窗体，在窗体上添加一个文本框和三个命令按钮。
vb上机考试习题以及答案
VB上机考试1、利用随机函数产生25个100到999之间的整数，构成5?5的矩阵，输出该矩阵。
Dim a(1 To 5, 1 To 5)Private Sub Form_Click()RandomizeFor i = 1 To 5For j = 1 To 5a(i, j) = Int(Rnd * (999 - 100 + 1) + 100)Print a(i, j);Next jPrintNext iEnd Sub2、利用随机函数产生25个10到99之间的整数，求其平均值(要求保留3位小数，第4位四舍五入)。
Private Sub Form_Click()For i = 1 To 25a = Int(Rnd * (99 - 10 + 1) + 10)Print a;s = s + aNext iPrintAvg = s / 25Print AvgEnd Sub3、在窗体上按下鼠标的右键，记录其坐标。
Private Sub Form_Load()= 1= 2End SubPrivate Sub Form_MouseDown(Button As Integer, Shift As Integer, X As Single, Y As Single)If Button = 2 Then= X & "," & YEnd IfEnd Sub4、利用随机函数产生25个10到99之间的整数，按从小到大的顺序显示。
Dim a(1 To 25)Private Sub Form_Click()ClsFor i = 1 To 25a(i) = Int(Rnd * (99 - 10 + 1) + 10)Print a(i);Next iPrintFor i = 1 To 25 - 1For j = 1 To 25 - iIf a(j) > a(j + 1) Then tmp = a(j): a(j) = a(j + 1): a(j + 1) = tmp Next jNext iFor i = 1 To 25Print a(i);Next iEnd Sub5、利用随机函数产生50个 [1,6] 之间的整数, 分别统计出1的个数，2的个数，3的个数，4的个数，5的个数和6的个数。
VB程序设计教程实验指导与习题解答上机答案
自测1程序代码Private Sub Command1_Click() Label1.FontSize = Label1.FontSize + 3End SubPrivate Sub Command2_Click() Label1.FontBold = TrueEnd SubPrivate Sub Command3_Click() Label1.FontUnderline = TrueEnd SubPrivate Sub Command4_Click() Label1.FontSize = 10Label1.FontBold = FalseLabel1.FontUnderline = FalseEnd Sub初始窗口：单机放大之后窗口：单机下划线之后窗口：单击加粗之后窗口：单击还原之后窗口：自测2程序代码Private Sub Command1_Click() Label1 = "visual basic"Text1 = "程序设计题"End SubPrivate Sub Command2_Click() Text1 = "visual basic"Label1 = "程序设计题"End Sub初始窗口：单击显示之后窗口：单击交换之后的窗口：自测题3Private Sub Command1_Click()Label1.FontSize = Label1.FontSize * (0.5) End SubPrivate Sub Command2_Click()Label1.Top = Label1.Top + 30Label1.Width = Label1.Width + 20Label1.Alignment = 1End Sub初始窗口：单击缩小两倍之后的窗口：单击向右下角移动之后的窗口：自测题4程序代码Private Sub Command1_Click() Form1.Caption = "VB学习" Print "简单的VB程序设计"End SubPrivate Sub Command2_Click() ClsEnd SubPrivate Sub Command3_Click() EndEnd SubPrivate Sub Command3_Click() EndEnd Sub初始化窗口：单击显示之后的窗口：单击清除之后的窗口：单击退出之后的窗口：自测题5程序代码Private Sub Command1_Click()Text1.Text = ""Text2.Text = ""End SubPrivate Sub Command2_Click()Text3.Text = Val(Text1.Text) + Val(Text2.Text) End SubPrivate Sub Command3_Click() EndEnd Sub初始化窗口：单击运算之后窗口：单击清除之后的窗口：单击退出之后的窗口：自测练习1Private Sub Command1_Click()Dim a$a = Text1.TextLabel1.Caption = Left(a, 2)End SubPrivate Sub Command2_Click()a = Text1.TextLabel2.Caption = Right(a, 2)End SubPrivate Sub Command3_Click()Text1.Text = Label1.Caption & Label2.Caption End Sub初始窗口界面输入字符串截取前两个字符截取后两个字符字符串连接自测练习2Private Sub Form_Click()Dim a%, b%, c%, d%, e%, f%, g%, h%, i%, j%, k%, l% a = 7349e = a Mod 10 '个位d = (a \ 10) Mod 10 '十位c = (a \ 100) Mod 10 '百位b = a \ 1000 '千位i = (e + 7) Mod 10 '个位h = (d + 7) Mod 10 '十位g = (c + 7) Mod 10 '百位f = (b + 7) Mod 10 '千位j = ii = f '交换后的个位f = j '交换后的千位k = hh = g '交换后的十位g = k '交换后的百位l = f * 1000 + g * 100 + h * 10 + iText1.Visible = FalsePrint "加密前的4位整数是7439"; (Chr(10)); "加密后的结果是"; lEnd Sub初始界面单击窗体运行后的界面自测练习1Private Sub Form_Click()Dim a%, b%, c%, d%, e%, f!a = Val(InputBox("输入第一个数", "输入一个数", 8))b = Val(InputBox("输入第一个数", "输入一个数", 7))c = a + bd = a - be = a * bf = a / bf = Fix(f * 100 + 0.5) / 100MsgBox "x+y=" & c & Chr(10) & "x-y=" & d & Chr(10) & "x*y=" & e & Chr(10) & "x/y=" & f, , "输出的结果"End Sub自测练习2Private Sub Form_Click()Dim a%, b%, c%, d%, e%, f!a = Val(InputBox("输入第一个数的值"))b = Val(InputBox("输入第二个数的值"))c = Val(InputBox("输入第三个数的值"))d = Val(InputBox("输入第四个数的值"))e = a + b + c + df = e / 4Print "和="; ePrint "平均值="; fEnd Sub自测练习3Private Sub Form_Click()Dim h%, f%, x%, y%h = Val(InputBox("输入总头数")) f = Val(InputBox("输入总脚数")) x = (4 * h - f) / 2y = (f - 2 * h) / 2Print "笼中鸡的头数为"; x; "只" Print "笼中兔的头数为"; y; "只"End Sub自测练习1：Private Sub Form_Click()Dim a%, b%, c%a = Val(InputBox("请输入第一条边", "边长"))b = Val(InputBox("请输入第二条边", "边长"))c = Val(InputBox("请输入第三条边", "边长"))If a + b > c And a + c > b And b + c > a ThenIf a * a + b * b = c * c Or a * a + c * c = b * b Or b * b = c * c = a * a ThenPrint "直角"ElseIf a = b And b = c ThenPrint "等边三角形"ElseIf a = b Or a = c Or b = c ThenPrint "等腰三角形"ElsePrint "一般三角形"End IfElsePrint "不是三角形"End IfEnd Sub不是三角形运行结果：初始窗口：输入三条边：运行结果：直角三角形运行结果：等边三角形运行结果如下：等腰三角形：一般三角形自测练习2：Private Sub Form_Click()Dim a%, b!a = Val(InputBox("请输入"))If a Mod 2 = 0 And a Mod 3 = 0 And a Mod 5 = 0 Then b = Sqr(a)Print a, bElseEndEnd IfEnd Sub初始化窗口：输入一个数：运行结果：自测练习3Private Sub Command1_Click()Dim a%, b%a = Val(Text1.Text)Select Case a > 0Case a < 20MsgBox "行李费为0.2元/kg", , "行李费"Case a >= 20 And a < 50MsgBox "行李费为0.3元/kg", , "行李费"Case a >= 50 And a < 100MsgBox "行李费为0.4元/kg", , "行李费"Case Elseb = 0.2 * 100 + (a - 100) * 0.5: MsgBox "行李费为" & b & "元", , "行李费"End SelectEnd Sub初始窗口：输入10：输入25：输入55：输入120：自测练习1Option Base 1Private Sub Form_Click()Dim i%, a(1 To 20) As Integera(1) = 1: a(2) = 1Print a(1);Print a(2);For i = 3 To 10a(i) = a(i - 1) + a(i - 2) Print a(i);Next iPrintFor i = 11 To 16a(i) = a(i - 1) + a(i - 2) Print a(i);Next iPrintFor i = 17 To 20a(i) = a(i - 1) + a(i - 2) Print a(i);Next i初始界面：运行结果界面：自测练习2Option Base 1Private Sub Form_Load() Form1.Width = 10000 Form1.Height = 5000 End SubPrivate Sub Command1_Click()Dim i%, j%, t%, a(1 To 4, 1 To 4) As Integer For i = 1 To 4For j = 1 To 4a(i, j) = Int(Rnd * 10) + 1Picture1.Print a(i, j);Next jPicture1.PrintNext iPicture3.Print "对角线的元素如下"For i = 1 To 4Picture3.Print a(i, i);Next iPicture3.PrintFor i = 1 To 4Picture3.Print a(i, 5 - i);Next iFor i = 1 To 4t = a(1, i)a(1, i) = a(4, i)a(4, i) = tNext iFor i = 1 To 4t = a(i, 2)a(i, 2) = a(i, 3)a(i, 3) = tNext iFor i = 1 To 4For j = 1 To 4Picture2.Print a(i, j); Next jPicture2.PrintNext iEnd Sub运行初始界面：运运行结果界面：自测练习1Sub itostr(a As Integer) Dim b%, c$a = Val(Text1.Text)While a >= 1c = Chr(a Mod 10 + 48) & ca = a \ 10WendText2.Text = c End SubPrivate Sub Command1_Click()Dim a As Integera = Val(Text1.Text)Call itostr(a)End Sub运行初始界面：运行结果界面：验证其他数字：自测练习2：Public Function area(n) As Double Dim c#, d#, e#, s#n = Val(Text2.Text)c = (1 - 0) / nWhile e <= 1d = I * c:e = (I + 1) * cs = s + (Sin(d) + Sin(e)) * c / 2 I = I + 1Wendarea = sEnd FunctionPrivate Sub Command1_Click() Dim s As DoubleCall area(n)Text1.Text = area(n)End Sub运行初始界面：运行结果：自测练习3Private Sub Form_click()n = Val(InputBox("请输入n的值"))x = Val(InputBox("请输入x的值"))Print "e的值="; es(n, x)End SubPrivate Function es(n, x)Dim a As Double, b As Double, c As Double, i As Integer a = 1: b = 1: c = 1For i = 1 To na = x * a:b = b * i:c = c + a / bNext ies = cEnd Function运行初始界面：输入数据：运行结果：自测练习4：For i = 1 To 4For j = i + 1 To 5If a(i) > a(j) Thent = a(i): a(i) = a(j): a(j) = tEnd IfNext jNext iFor i = 1 To 5Print a(i); " ";Next iFor i = 1 To 5If Y < a(i) Thent = a(i): a(i) = Y: Y = tEnd IfNext iFor i = 1 To 6a(6) = tNext iEnd FunctionPrivate Sub Command1_Click()Dim i#, a%(1 To 6), Y%Y = Val(InputBox("输入y的值", "输入数据")) Insertfun a%(), YPrintFor i = 1 To 6Print a(i); " "; Next iEnd Sub运行初始界面：插入数据：运行结果：41011060蓝志鹏资源1102 实验8自测练习1：Private Sub Command1_Click()If Ch1.Value = 1 ThenText1.Text = "报名参加羽毛球比赛"End IfIf Ch2.Value = 1 ThenText1.Text = "报名参加乒乓球比赛"End IfIf Ch1.Value = 1 And Ch2.Value = 1 Then Text1.Text = "报名参加羽毛球，乒乓球比赛" End IfEnd Sub运行初始界面：运行结果：自测练习4：Private Sub Form_Load() Label1.Alignment = 2 Label1.FontSize = 24 Label1.FontName = "黑体" Label1.ForeColor = &HFF&End SubPrivate Sub Option1_Click() Label1.Caption = "我是学生" End SubPrivate Sub Option2_Click() Label1.Caption = "我是教师" End SubPrivate Sub Option3_Click() Label1.Caption = "我是工人" End SubPrivate Sub Option4_Click() Label1.Caption = "我是农民" End Sub运行初始界面：。
VB语言程序设计课后编程和上机调试参考答案
VB语言程序设计课后编程及上机调试参考答案ex0101Private Sub Label1_Click()Caption = "练习"Command1.Caption = "确定"Label1.FontBold = TrueLabel1.AutoSize = TrueLabel1.Caption = "Visual Basic程序设计教程"End Subex0102Private Sub Command1_Click()Txt.Text = "我有电脑"End SubPrivate Sub Command2_Click()Txt.Text = "我没有电脑"End SubPrivate Sub Command3_Click()Txt.Text = "" '一对双撇号，中间不留空End Subex0104Private Sub Command1_Click()Dim x As Singlex = Val(Text1.Text)Text2.Text = 15 * xEnd Subex0202Private Sub Form_Click()Dim r As Single, s As Singler = 4.6s = 3.14159 * r ^ 2Text1.Text = "圆的面积为" & sEnd Subex0204Private Sub Command1_Click() '"最大化"按钮Form1.WindowState = 2 '最大化End SubPrivate Sub Command2_Click() '"还原"按钮Form1.WindowState = 0 '还原Private Sub Command3_Click() '"最小化"按钮Form1.WindowState = 1 '最小化End Subex0205Private Sub command1_click()Dim x As SingleDim y As Singlex = Val(Text1.Text)y = Val(Text2.Text)Text3.Text = x * x + y * yEnd Subex0206Private Sub command1_click()Dim x As Stringx = Text1.TextText2.Text = Left(x, 1) + Right(x, 1)End Subex0301Private Sub Form_Load()Dim x As Integer, y As IntegerDim a As Integer, b As Integer, c As Integerx = Val(InputBox("请输入一个三位数"))a = Int(x / 100) '求百位数b = Int(x / 10) - a * 10 '求十位数c = x Mod 10 '求个位数 Showy = c * 100 + b * 10 + a '生成倒序数 Print x; "倒序数为："; y '显示倒序数End Subex0302Private Sub Command1_Click()n = Val(Text1.Text)Randomizex = Int(1 + n * Rnd)Label1.Caption = "第一个随机数" + Str(x)x = Int(1 + n * Rnd)Label2.Caption = "第二个随机数" + Str(x)x = Int(1 + n * Rnd)Label3.Caption = "第三个随机数" + Str(x)ex0303Private Sub Cmd1_Click()Lab1.Visible = TrueLab1.Caption = "您已下达显示命令"End SubPrivate Sub Form_Click()Cmd1.Visible = TrueEnd Subex0304Private Sub Form_KeyPress(KeyAscii As Integer)ShowPrint "输入字符："; Chr(KeyAscii), "ASCII码为;"; KeyAsciiEnd SubPrivate Sub Form_DblClick()ClsEnd Subex0305Private Sub Form_Load()x = MsgBox("在这里显示提示信息", 4 + 0, "请确认")x = MsgBox("在这里显示" + Chr(13) + "提示信息", 3 + 0, "请确认")x = MsgBox("在这里显示" + Chr(13) + "提示信息", 2 + 16 + 0, "请确认") End Subex0401Private Sub Form_Load()Dim x As Long, s As Stringx = InputBox("输入一个整数(1～35000)")s = "奇数"If x Mod 2 = 0 Then s = "偶数"MsgBox sEnd Subex0402Private Sub Command1_Click()Dim a As Single, b As SingleDim c As Single, d As SingleDim m As Single, n As Single, x As SingleShowa = Val(Text1.Text)b = Val(Text2.Text)c = Val(Text3.Text)d = Val(Text4.Text)If a > b Then '求a、b中的较大数m = aElsem = bEnd IfIf c > d Then '求c、d中的较大数n = cElsen = dEnd IfIf m > n Then '求m、n中的较大数x = mElsex = nEnd IfText5.Text = xEnd Subex0403Private Sub Command1_Click()Dim t As String, p As Stringt = Mid(Text1.Text, 5, 1)Select Case tCase "2"p = "博士生"Case "3"p = "硕士生"Case "4"p = "本科生"Case "5"p = "专科生"Case Elsep = "无效学号"End SelectText2.Text = Left(Text1.Text, 2) + "级" Text3.Text = pEnd Subex0404Private Sub Command1_Click()r = 0: g = 0: b = 0If Check1.Value = 1 Thenr = 255End IfIf Check2.Value = 1 Theng = 255End IfIf Check3.Value = 1 Thenb = 255End IfLabel1.BackColor = RGB(r, g, b)End SubPrivate Sub Command2_Click()EndEnd Subex0405Private Sub Form_Load()LabClk.Caption = "0"LabClk.Alignment = 1LabClk.BorderStyle = 1LabClk.FontSize = 22LabClk.FontName = "黑体"TimClk.Interval = 1000End SubPrivate Sub TimClk_Timer()LabClk.Caption = Val(LabClk.Caption) + 1End Subex0406Private Sub Form_Load()Command1.Enabled = FalseCommand2.Enabled = FalseEnd SubPrivate Sub Text1_MouseUp(Button As Integer, Shift As Integer, X As Single, Y As Single) If Text1.SelLength > 0 ThenCommand1.Enabled = TrueEnd IfEnd SubPrivate Sub Command1_Click()Command1.Enabled = TrueCommand2.Enabled = TrueEnd SubPrivate Sub Command2_Click()Text2.Text = Text1.SelTextCommand1.Enabled = FalseCommand2.Enabled = FalseEnd Subex0501Private Sub Form_Load()Dim k As Integer, s As Integer, t As Integer s = 0For k = 1 To 100 Step 2s = s + kNext kShowPrint "1～100范围内的奇数和："; sEnd Subex0502Private Sub Form_Load()Dim s As SingleShows = 0For k = 1 To 200s = s + k / (1 + k * k)Next kPrint Int(s * 10 + 0.5) / 10End Subex0503Private Sub Form_Load()Showk = 2s = 0Do While k < 101s = s + k * (k - 1)k = k + 2LoopPrint sEnd Subex0504Private Sub Form_Load()Dim k As Integer, a As Integer, b As Integer Dim c As Integer, n As IntegerShown = 0Print "三位数的水仙花数是："For k = 100 To 999a = Int(k / 100)b = Int((k - 100 * a) / 10)c = k Mod 10If a * a * a + b * b * b + c * c * c = k Then Print kn = n + 1End IfNext kPrint "一共有" & n & "个水仙花数"End Subex0505Private Sub Form_Load()ShowFor k = 1000 To 9999If k Mod 78 = 0 Thena = Int(k / 1000)b = Int(k / 100) - 10 * ac = Int(k / 10) - 100 * a - 10 * bd = k Mod 10If a = b And c = d ThenPrint kEnd IfEnd IfNext kEnd Subex0506Private Sub Command1_Click()Dim s As String, y As StringDim x As String, t As Strings = Text1.Text: y = ""For k = 1 To Len(s)x = Mid(s, k, 1)t = UCase(x)If t >= "A" And t <= "Z" Theny = y + xEnd IfNext kText2.Text = yEnd Subex0507Private Sub Command1_click() '"显示"按钮单击事件FontSize = 12ClsFor i = 0 To List1.ListCount - 1 '逐项判断If List1.Selected(i) Then '真时为选定Print List1.List(i)End IfNext iEnd Subex0508Private Sub Form_Load()ShowFor a = 1 To 9For b = 1 To 9For c = 1 To 9For d = 1 To 9x = a * 1000 + b * 100 + c * 10 + dy = b * 1000 + a * 100 + a * 10 + cz = d * 100 + d * 10 + aIf x - y = z ThenPrint "A=" & a & ",B=" & b & ",C=" & c & ",D=" & d End IfNext dNext cNext bNext aEnd Subex0601Private Sub Command1_Click()Dim a(10) As Integer, min As Integer, pos As IntegerRandomizeFor i = 1 To 10a(i) = Int(Rnd * 90 + 10)Print a(i);Next iPrintmin = a(1)pos = 1For k = 2 To 10If a(k) < min Thenmin = a(k)pos = kEnd IfNext kPrint "最小数："; min, "位置："; posEnd Subex0602Private Sub Form_Load()Dim a As Variant, b As VariantDim c(8) As Integera = Array(3, 4, 2, 1, 5, 7, 8, 11, 13)b = Array(10, 6, 12, 9, 13, 8, 8, 1, 16)For k = 0 To 8c(k) = a(k) + b(k)Next kShowFor k = 0 To 8Print c(k)Next kEnd Subex0603Private Sub Form_Load()Dim d() As IntegerDim k As Integer, t As Integer, m As Integer Dim h As Integer, n As Integern = Val(InputBox("请输入数组个数n："))ReDim d(n)ShowPrint "处理前数据 :"RandomizeFor k = 1 To nd(k) = Int((101 * Rnd - 50))Print d(k);Next kPrintm = Int(n / 2)For k = 1 To mh = n - k + 1t = d(h): d(h) = d(k): d(k) = tNext kPrint "处理的结果 :"For k = 1 To nPrint d(k);Next kEnd Subex0604Private Sub Form_Load()Dim a(8, 8) As Integer, n As IntegerDim s As Long, i As Integer, j As IntegerShowRandomizen = 8For i = 1 To nFor j = 1 To nx = Int(90 * Rnd + 10) '产生一个随机数 a(i, j) = xNext jNext is = 0For i = 1 To nFor j = 1 To ns = s + a(i, j)Next jNext iPrint "所有元素之和；"; sPrintFor i = 1 To ns = 0For j = 1 To ns = s + a(i, j)Next jPrint "第"; i; "行元素之和；"; sNext iPrints = 0For i = 1 To ns = s + a(i, i)Next iPrint "主对角线元素之和；"; sPrints = 0For i = 1 To nFor j = 1 To nIf i = 1 Or i = n Or j = 1 Or j = n Thens = s + a(i, j)End IfNext jNext iPrint "所有靠边元素之和；"; sEnd Subex0605Option Base 1Private Sub Form_Load()Dim a(8, 8) As Integer, n As IntegerDim max As Integer, r As Integer, c As IntegerShowRandomizen = 8For i = 1 To nFor j = 1 To nx = Int(900 * Rnd + 100) '产生一个随机数 a(i, j) = xPrint x;Next jPrintNext imax = 0: r = 1: c = 1PrintFor i = 1 To nFor j = 1 To nIf a(i, j) > max Then '判断有无更大数 max = a(i, j): r = i: c = jEnd IfNext j, iPrint "最大值为："; maxPrint "位于行："; r, "列："; cEnd Subex0606Dim n As IntegerPrivate Sub Cmd1_Click()n = n + 1If n = 3 Then n = 0Opt1(n).Value = TrueEnd SubPrivate Sub Form_Load()End Subex0607Private Sub Form_Load()Dim a(20) As IntegerRandomizea(1) = Int(10 + 90 * Rnd) k = 1Do While k < 20x = Int(10 + 90 * Rnd) f = 0For j = 1 To kIf x = a(j) Then f = 1Exit ForEnd IfNext jIf f = 0 Thenk = k + 1a(k) = xEnd IfLoopShowFor j = 1 To 20Print a(j)Next jEnd Subex0701Private Sub Form_Click()Dim s As Longs = 0For k = 1 To 10s = s + jc(k)Next kPrint sEnd SubFunction jc(n) As LongDim t As Longt = 1For k = 1 To nt = t * kNext kEnd Functionex0702Private Sub Form_Load()Dim a As Single, b As Single, c As SingleDim d As Single, m As Single, n As SingleShowa = Val(InputBox("输入第1个数"))b = Val(InputBox("输入第2个数"))c = Val(InputBox("输入第3个数"))d = Val(InputBox("输入第4个数"))m = max(a, b) '求a、b中的较大数 n = max(c, d) '求c、d中的较大数 Print "最大数为：" & max(m, n) '求m、n中的较大数End SubFunction max(x, y) As SingleIf x > y Thenmax = xElsemax = yEnd IfEnd Functionex0703Private Sub Command1_Click()Dim d(5) As Single, m As SingleFor k = 0 To 5d(k) = Val(Text1(k).Text)Next kCall Max(d(0), d(1), d(2), m)Call Max(m, d(3), d(4), m)Call Max(m, m, d(5), m)Text2.Text = mEnd Subex0704Private Sub Form_Load()Dim x As LongShowx = Val(InputBox("输入一个数"))Print x; "的位数为："; fnws(x)End SubFunction fnws(x As Long) As IntegerDim n As Integern = 1Do While x \ 10 > 0n = n + 1x = x \ 10Loopfnws = nEnd Functionex0705Private Sub C1_Click()Form1.HideEnd Subex0705APrivate Sub C2_Click()Form1.ShowEnd Subex0706Dim n As IntegerPrivate Sub Command1_Click()usern = Trim(Text1.Text)passw = Trim(Text2.Text)If usern = "username" And passw = "password" Then Form1.HideForm2.ShowElsen = n + 1Text1.SetFocusIf n = 3 ThenForm1.HideForm3.ShowEnd IfEnd IfText1.Text = ""Text2.Text = ""End Subex0706APrivate Sub Command1_Click()Form2.HideForm1.ShowEnd Subex0906BPrivate Sub Command1_Click()Unload Form1Unload Form2Unload Form3EndEnd Subex0802Private Sub Form_Load()Dim i As Integer, j As IntegerShowFor i = 1 To 12Print String(20 - i, 32); '输出当前行左边的空格，分号表示下一输出项紧接输出 For j = 1 To 2 * i - 1 '输出2*i-1个字符If j <= i Then '按左、右两边指定输出字符k = j '左边输出的字符Elsek = 2 * i - j '右边输出的字符End IfIf k > 9 Then k = k + 7 '字母的ASCII码比数字大7Print Chr(k + 48); '以字符格式输出Next jPrint '换行Next iEnd Subex0803Dim t As Single, f As IntegerPrivate Sub Command1_Click() '“产生原稿文”按钮Randomizes = ""For k = 1 To 30x = Chr(Int(Rnd * 26) + 97) '随机产生小写字母s = s + xNext kText1.Text = s '显示在文本框中Text2.Text = ""Text2.Locked = False '允许录入Text2.SetFocus '设置焦点Text3.Text = ""Text4.Text = ""f = 0 '第1次按键标记，0表示未按键End SubPrivate Sub Command2_Click() '“结束”按钮EndEnd SubPrivate Sub Text2_KeyUp(KeyCode As Integer, Shift As Integer)Dim c As Integer, k As IntegerIf f = 0 Then '第1次按键时，开始计时t = Timer '用t保存第1次按键的时间 f = 1 '1表示已按键和进入录入过程 End IfIf Len(Text2.Text) < 30 ThenText3.Text = Round(Timer - t, 1) & "秒" '显示用户当前所用时间Elsec = 0For k = 1 To 30 '统计录入正确的字母个数If Mid(Text1.Text, k, 1) = Mid(Text2.Text, k, 1) Thenc = c + 1End IfNext kText2.Locked = True '禁止录入Text4.Text = Round(c / 30 * 100, 2) & "%" '显示准确率End IfEnd Subex0901Private Sub Command1_Click()Open "静夜思.txt" For Input As #1Do While Not EOF(1) '文件未结束时，循环Input #1, xList1.AddItem xLoopClose #1End Subex0902Dim d(1 To 20) As IntegerPrivate Sub Command1_Click() '"产生随机数"For i = 1 To 20d(i) = Int(1 + 99 * Rnd)List1.AddItem d(i)Next iEnd SubPrivate Sub Command2_Click() '"保存"Open "MyFile4.txt" For Output As #1For i = 1 To 20Write #1, d(i)Next iClose #1End SubPrivate Sub Command3_Click() '"读出"Open "MyFile4.txt" For Input As #1Do While Not EOF(1)Input #1, xList2.AddItem xLoopClose #1End SubPrivate Sub Command4_Click() '"结束"EndEnd Subex0903Private Sub Form_Load()ShowFor k = 1 To 6fn = "..\第7章\ex070" & k & ".vbp"If Dir(fn) = "" ThenPrint Mid(fn, 4) & "未编写！！"ElsePrint Mid(fn, 4) & "已编写！！"End IfNext kEnd Subex0904Private Sub Form_Load()chedir = "C:\Documents and Settings\Lin\My Documents\fsodir" If Dir(chedir, 16) = "" ThenMkDir chedirEnd Ifchefile = "C:\Windows\notepad.exe"If Dir(chefile) <> "" ThenFileCopy chefile, chedir & "\mynotepad.exe"End IfMsgBox "操作完毕！"End Subex1002Private Sub A1_Click()Label1.ForeColor = vbRedEnd SubPrivate Sub A2_Click()Label1.ForeColor = vbBlueEnd SubPrivate Sub A3_Click()Label1.ForeColor = vbGreenEnd SubPrivate Sub Label1_MouseUp(Button As Integer, Shift As Integer, X As Single, Y As Single) If Button = 2 ThenPopupMenu mun0End IfEnd Subex1003Private Sub Command1_Click()CommonDialog1.DialogTitle = "选择文件"CommonDialog1.Filter = "文本文件|*.txt"CommonDialog1.InitDir = "C:\"CommonDialog1.ShowOpenText1.Text = CommonDialog1.FileNameEnd SubPrivate Sub Command2_Click()Unload MeEndEnd Subex1101Private Sub calzc(x As Integer)Text2.Text = Round(2 * 3.14159 * x, 2)End SubPrivate Sub HV_Scroll()Dim r As Integerr = HV.ValueText1.Text = "=" & rCall calzc(r)End SubPrivate Sub Form_Load()HV.Max = 300End Subex1102Private Sub Form_Load()For k = 0 To 3Image1(k).Stretch = TrueImage1(k).Picture = LoadPicture("箭头" & k + 1 & ".bmp") Next kEnd SubPrivate Sub Image1_Click(Index As Integer)Picture1.Font.Size = 20Picture1.ClsSelect Case IndexCase 0Picture1.Print "箭头向上"Case 1Picture1.Print "箭头向左"Case 2Picture1.Print "箭头向右"Case 3Picture1.Print "箭头向下"End SelectEnd Sub。
计算机二级VB第3-4章选择题及答案
1、以下()语句可表示[50,100] 之间的随机整数。
A、Int(Rnd*51)+49B、Int(Rnd*51+50) C、DInt(Rnd*50)+50Int(Rnd*50+50)2、设a=” 39级台阶”，使b=”台阶”的语句是()。
A、Right ( a，4)C、Left(a,5,4)B、Instr ( a，5，4)D、Mid(a,4,2)3、下列语句合法的是() 。
A、x+y = 2 C、x=y>2B、x>y=2 D、x=y++4、定义变量时如不指定类型，该变量为()类型。
A、Integer C、VariantB、String D、Single5、设a= 6, b = 5, c = —2；执行语句Print a>b>c 后,窗体上显示的是()A、1 C、FalseB、True D、出错信息6、下列语句组：a$="Today And Tomorrow" b$=Right(a$,8):c$=Left(a$,5) msgbox a$,,b$,c$,5 执行后消息框的标题是() 。
A、Today C、Today And TomorrowB、Tomorrow D、17、如果x 小于y 的平方,则在窗体上输出”OK。
完成该要求的条件语句是()。
A、If x< y A 2 The n "OK" C、If x< y A 2 Then Print "OK"B、If x< y A 2 The n Show "OK" D、If x< y A 2 Then Put "OK" 8表达式Len (”幸运52”)的值是()A、B、04C、D、689、错误使用Print 方法的是()。
A、C、B、D、10、执行x = MsgBox(" 数据类型不匹配", vbOKCancel, " 出错提示！") ,然后单击消息框的“取消“按钮, x 的值是()。
VB实验任务3答案
实验任务3课程名称：程序设计基础VB实验名称——实验三Visual Basic程序的界面设计(2)一、实验目的：1．学会根据要求设计窗体界面，合理使用常用控件，并对窗体进行布局2．掌握常用控件的属性、方法和事件3．进一步体会事件驱动方式的应用程序的设计原理二、实验内容（包括实验要求(题目)、实验步骤、程序清单、运行情况）：1.独立完成下面的实验（参考界面和要求如下），并根据课本第三章内容，熟练掌握时间控件、文本框、按钮、滚动条等的设计实验1实验书实验3-1在文本框中输入信息，单击窗体后，在图片框中输出相应信息，程序运行界面如图3-9所示。
图3-9 实验3-1运行界面（1）界面设计。
在窗体Form1上添加3个标签、3个文本框和1个图片框控件对象。
（2）属性设置如表3-1所示。
（3）程序代码。
Private Sub Form_Click()。
’填写代码End Sub（4）运行程序。
（5）保存工程。
将窗体保存为3-1.frm，将工程保存为3-1.vbp。
实验2实验书实验3-2窗体中有2个图片框，每个图片框中各有一个图像框和复选框控件，且图像框中都加载了图片，界面如图3-2（a）所示。
当选中某图片框中的复选框，则清除该图片框中图像框的加载图片，如图3-2（b）所示。
∙（a）初始界面（b）复选框单击后的界面∙图3-10 实验3-2运行界面（1）界面设计。
在窗体Form1上添加2个图片框、2个图像框和2个复选框对象，每个图片框中有1个图像框和1个复选框。
（2）属性设置如表3-2所示。
（3）程序代码。
Dim path As String '定义模块级变量,用于存放图片所在路径Private Sub Form_Load()。
’填写代码End SubPrivate Sub Chk1_Click()。
’填写代码End SubPrivate Sub Chk2_Click()。
’填写代码End Sub（4）运行程序。
VB程序设计指导实验指导与习题解答上机答案
自测1程序代码Private Sub Command1_Click() Label1.FontSize = Label1.FontSize + 3End SubPrivate Sub Command2_Click() Label1.FontBold = TrueEnd SubPrivate Sub Command3_Click() Label1.FontUnderline = TrueEnd SubPrivate Sub Command4_Click() Label1.FontSize = 10Label1.FontBold = FalseLabel1.FontUnderline = FalseEnd Sub初始窗口：单机放大之后窗口：单机下划线之后窗口：单击加粗之后窗口：单击还原之后窗口：自测2程序代码Private Sub Command1_Click() Label1 = "visual basic"Text1 = "程序设计题"End SubPrivate Sub Command2_Click() Text1 = "visual basic"Label1 = "程序设计题"End Sub初始窗口：单击显示之后窗口：单击交换之后的窗口：自测题3Private Sub Command1_Click()Label1.FontSize = Label1.FontSize * (0.5) End SubPrivate Sub Command2_Click()Label1.Top = Label1.Top + 30Label1.Width = Label1.Width + 20Label1.Alignment = 1End Sub初始窗口：单击缩小两倍之后的窗口：单击向右下角移动之后的窗口：自测题4程序代码Private Sub Command1_Click() Form1.Caption = "VB学习" Print "简单的VB程序设计"End SubPrivate Sub Command2_Click() ClsEnd SubPrivate Sub Command3_Click() EndEnd SubPrivate Sub Command3_Click() EndEnd Sub初始化窗口：单击显示之后的窗口：单击清除之后的窗口：单击退出之后的窗口：自测题5程序代码Private Sub Command1_Click()Text1.Text = ""Text2.Text = ""End SubPrivate Sub Command2_Click()Text3.Text = Val(Text1.Text) + Val(Text2.Text) End SubPrivate Sub Command3_Click()EndEnd Sub初始化窗口：单击运算之后窗口：单击清除之后的窗口：单击退出之后的窗口：自测练习1Private Sub Command1_Click() Dim a$a = Text1.TextLabel1.Caption = Left(a, 2) End SubPrivate Sub Command2_Click() a = Text1.TextLabel2.Caption = Right(a, 2) End SubPrivate Sub Command3_Click()Text1.Text = Label1.Caption & Label2.Caption End Sub初始窗口界面输入字符串截取前两个字符截取后两个字符字符串连接自测练习2Private Sub Form_Click()Dim a%, b%, c%, d%, e%, f%, g%, h%, i%, j%, k%, l% a = 7349e = a Mod 10 '个位d = (a \ 10) Mod 10 '十位c = (a \ 100) Mod 10 '百位b = a \ 1000 '千位i = (e + 7) Mod 10 '个位h = (d + 7) Mod 10 '十位g = (c + 7) Mod 10 '百位f = (b + 7) Mod 10 '千位j = ii = f '交换后的个位f = j '交换后的千位k = hh = g '交换后的十位g = k '交换后的百位l = f * 1000 + g * 100 + h * 10 + iText1.Visible = FalsePrint "加密前的4位整数是7439"; (Chr(10)); "加密后的结果是"; lEnd Sub初始界面单击窗体运行后的界面自测练习1Private Sub Form_Click()Dim a%, b%, c%, d%, e%, f!a = Val(InputBox("输入第一个数", "输入一个数", 8))b = Val(InputBox("输入第一个数", "输入一个数", 7))c = a + bd = a - be = a * bf = a / bf = Fix(f * 100 + 0.5) / 100MsgBox "x+y=" & c & Chr(10) & "x-y=" & d & Chr(10) & "x*y=" & e & Chr(10) & "x/y=" & f, , "输出的结果"End Sub自测练习2Private Sub Form_Click()Dim a%, b%, c%, d%, e%, f!a = Val(InputBox("输入第一个数的值"))b = Val(InputBox("输入第二个数的值"))c = Val(InputBox("输入第三个数的值"))d = Val(InputBox("输入第四个数的值"))e = a + b + c + df = e / 4Print "和="; e Print "平均值="; f End Sub自测练习3Private Sub Form_Click()Dim h%, f%, x%, y%h = Val(InputBox("输入总头数")) f = Val(InputBox("输入总脚数")) x = (4 * h - f) / 2y = (f - 2 * h) / 2Print "笼中鸡的头数为"; x; "只" Print "笼中兔的头数为"; y; "只"End Sub自测练习1：Private Sub Form_Click() Dim a%, b%, c%a = Val(InputBox("请输入第一条边", "边长"))b = Val(InputBox("请输入第二条边", "边长"))c = Val(InputBox("请输入第三条边", "边长"))If a + b > c And a + c > b And b + c > a ThenIf a * a + b * b = c * c Or a * a + c * c = b * b Or b * b = c * c = a * a ThenPrint "直角"ElseIf a = b And b = c ThenPrint "等边三角形"ElseIf a = b Or a = c Or b = c ThenPrint "等腰三角形"ElsePrint "一般三角形"End IfElsePrint "不是三角形"End IfEnd Sub不是三角形运行结果：初始窗口：输入三条边：运行结果：直角三角形运行结果：等边三角形运行结果如下：等腰三角形：一般三角形自测练习2：Private Sub Form_Click()Dim a%, b!a = Val(InputBox("请输入"))If a Mod 2 = 0 And a Mod 3 = 0 And a Mod 5 = 0 Then b = Sqr(a)Print a, bElseEndEnd IfEnd Sub初始化窗口：输入一个数：运行结果：自测练习3Private Sub Command1_Click()Dim a%, b%a = Val(Text1.Text)Select Case a > 0Case a < 20MsgBox "行李费为0.2元/kg", , "行李费"Case a >= 20 And a < 50MsgBox "行李费为0.3元/kg", , "行李费"Case a >= 50 And a < 100MsgBox "行李费为0.4元/kg", , "行李费"Case Elseb = 0.2 * 100 + (a - 100) * 0.5: MsgBox "行李费为" & b & "元", , "行李费"End SelectEnd Sub初始窗口：输入10：输入25：输入55：输入120：自测练习1Option Base 1Private Sub Form_Click()Dim i%, a(1 To 20) As Integera(1) = 1: a(2) = 1Print a(1);Print a(2);For i = 3 To 10a(i) = a(i - 1) + a(i - 2) Print a(i);Next iPrintFor i = 11 To 16a(i) = a(i - 1) + a(i - 2) Print a(i);Next iPrintFor i = 17 To 20a(i) = a(i - 1) + a(i - 2) Print a(i);Next i初始界面：运行结果界面：自测练习2Option Base 1Private Sub Form_Load() Form1.Width = 10000 Form1.Height = 5000 End SubPrivate Sub Command1_Click()Dim i%, j%, t%, a(1 To 4, 1 To 4) As Integer For i = 1 To 4For j = 1 To 4a(i, j) = Int(Rnd * 10) + 1Picture1.Print a(i, j);Next jPicture1.PrintNext iPicture3.Print "对角线的元素如下"For i = 1 To 4Picture3.Print a(i, i);Next iPicture3.PrintFor i = 1 To 4Picture3.Print a(i, 5 - i);Next iFor i = 1 To 4t = a(1, i)a(1, i) = a(4, i)a(4, i) = tNext iFor i = 1 To 4t = a(i, 2)a(i, 2) = a(i, 3)a(i, 3) = tNext iFor i = 1 To 4For j = 1 To 4Picture2.Print a(i, j); Next jPicture2.PrintNext iEnd Sub运行初始界面：运运行结果界面：自测练习1Sub itostr(a As Integer) Dim b%, c$a = Val(Text1.Text)While a >= 1c = Chr(a Mod 10 + 48) & ca = a \ 10WendText2.Text = c End SubPrivate Sub Command1_Click()Dim a As Integera = Val(Text1.Text)Call itostr(a)End Sub运行初始界面：运行结果界面：验证其他数字：自测练习2：Public Function area(n) As Double Dim c#, d#, e#, s#n = Val(Text2.Text)c = (1 - 0) / nWhile e <= 1d = I * c:e = (I + 1) * cs = s + (Sin(d) + Sin(e)) * c / 2 I = I + 1Wendarea = sEnd FunctionPrivate Sub Command1_Click() Dim s As DoubleCall area(n)Text1.Text = area(n)End Sub运行初始界面：运行结果：自测练习3Private Sub Form_click()n = Val(InputBox("请输入n的值"))x = Val(InputBox("请输入x的值"))Print "e的值="; es(n, x)End SubPrivate Function es(n, x)Dim a As Double, b As Double, c As Double, i As Integer a = 1: b = 1: c = 1For i = 1 To na = x * a:b = b * i:c = c + a / bNext ies = cEnd Function运行初始界面：输入数据：运行结果：自测练习4：For i = 1 To 4For j = i + 1 To 5If a(i) > a(j) Thent = a(i): a(i) = a(j): a(j) = tEnd IfNext jNext iFor i = 1 To 5Print a(i); " ";Next iFor i = 1 To 5If Y < a(i) Thent = a(i): a(i) = Y: Y = tEnd IfNext iFor i = 1 To 6a(6) = tNext iEnd FunctionPrivate Sub Command1_Click()Dim i#, a%(1 To 6), Y%Y = Val(InputBox("输入y的值", "输入数据")) Insertfun a%(), YPrintFor i = 1 To 6Print a(i); " "; Next iEnd Sub运行初始界面：插入数据：运行结果：41011060蓝志鹏资源1102 实验8自测练习1：Private Sub Command1_Click()If Ch1.Value = 1 ThenText1.Text = "报名参加羽毛球比赛"End IfIf Ch2.Value = 1 ThenText1.Text = "报名参加乒乓球比赛"End IfIf Ch1.Value = 1 And Ch2.Value = 1 Then Text1.Text = "报名参加羽毛球，乒乓球比赛" End IfEnd Sub运行初始界面：运行结果：自测练习4：Private Sub Form_Load() Label1.Alignment = 2 Label1.FontSize = 24 Label1.FontName = "黑体" Label1.ForeColor = &HFF&End SubPrivate Sub Option1_Click() Label1.Caption = "我是学生" End SubPrivate Sub Option2_Click() Label1.Caption = "我是教师" End SubPrivate Sub Option3_Click() Label1.Caption = "我是工人" End SubPrivate Sub Option4_Click() Label1.Caption = "我是农民" End Sub运行初始界面：运行结果：。