铁道出版社重庆计算机VB程序设计第八章实战套题上机答案

自测 1 程序代码Private Sub Command1_Click()Label1.FontSize = Label1.FontSize + 3End SubPrivate Sub Command2_Click()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.Width = Label1.Width + 20 Label1.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 Sub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 = ""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$Label1.Caption = Left(a, 2)End SubPrivate Sub Command2_Click()a = Text1.TextLabel2.Caption = Right(a, 2)Dim a%, b%, c%, d%, e%, f%, g%, h%, i%, j%, k%, l% a = 7349e = a Mod 10 '个位d = (a \ 10) Mod 10 '十位c = (a \ 100) Mod 10 '百位b = a \ 1000 '千位i = (e + 7) Mod 10 '个位h = (d + 7) Mod 10 '十位g = (c + 7) Mod 10 '百位f = (b + 7) Mod 10 '千位j = ii = f '交换后的个位Private Sub Form_Click()Dim a%, b%, c%, d%, e%, f!a = Val(InputBox("输入第一个数", "输入一个数", 8))b = Val(InputBox("输入第一个数", "输入一个数", 7))c = a + bd = a - be = a * bf = a / bf = Fix(f * 100 + 0.5) / 100MsgBox "x+y=" & c & Chr(10) & "x-y=" & d & Chr(10) & "x*y=" & e & Chr(10) & "x/y=" & f, , "输出的结果"End SubEnd Sub自测练习3Private Sub Form_Click()Dim h%, f%, x%, y%h = Val(InputBox("输入总头数"))f = Val(InputBox("输入总脚数"))x = (4 * h - f) / 2y = (f - 2 * h) / 2Print "笼中鸡的头数为"; x; "只" Print "笼中兔的头数为"; y; "只" End Sub自测练习1：ElseIf a = b Or a = c Or b = c Then Print "等腰三角形"ElsePrint "一般三角形"End IfElsePrint "不是三角形" End IfEnd Sub不是三角形运行结果：初始窗口：输入三条边：Print a, bElseEndEnd IfEnd Sub初始化窗口：输入一个数：运行结果：自测练习3Private Sub Command1_Click() Dim a%, b%初始窗口：输入10：输入25：输入55：输入120：Option Base 1Private Sub Form_Click()Dim i%, a(1 To 20) As Integer a(1) = 1: a(2) = 1Print a(1);For i = 17 To 20a(i) = a(i - 1) + a(i - 2) Print a(i);Next i初始界面：运行结果界面：Option Base 1Private Sub Form_Load() Form1.Width = 10000Form1.Height = 5000End SubPicture3.Print a(i, i); Next iPicture3.PrintFor i = 1 To 4Picture3.Print a(i, 5 - i); Next iFor i = 1 To 4t = a(1, i)a(1, i) = a(4, i) a(4, i) = tNext iFor i = 1 To 4运行初始界面：运运行结果界面：自测练习1Sub itostr(a As Integer)Dim b%, c$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#Call 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)For i = 1 To 4For j = i + 1 To 5If a(i) > a(j) Thent = a(i): a(i) = a(j): a(j) = t End IfNext jNext iFor i = 1 To 5Print a(i); " "; Next iFor i = 1 To 5If Y < a(i) ThenPrintFor i = 1 To 6Print a(i); " "; Next iEnd Sub运行初始界面：插入数据：运行结果：自测练习1：Private Sub Command1_Click()If Ch1.Value = 1 ThenText1.Text = "报名参加羽毛球比赛"Private Sub Form_Load()Label1.Alignment = 2Label1.FontSize = 24Label1.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 SubIf Combo1.List(i) = Combo1.Text Then Exit ForEnd IfNext iIf i > Combo1.ListCount - 1 Then Combo1.AddItem Combo1.TextEnd IfEnd SubPrivate Sub Command2_Click()If Combo1.ListIndex <> -1 Then Combo1.RemoveItem Combo1.ListIndex For i = 0 To Combo1.ListCount - 1自测练习7：Private Sub Command1_Click()Timer1.Interval = 1Timer1.Enabled = TrueEnd SubPrivate Sub Form_Load()lbltemp1.FontSize = 20 lbltishi.FontSize = 20 Label1.FontSize = 20Label2.FontSize = 20End SubPrivate Sub Timer1_Timer()frmAbout.ShowEnd SubPrivate Sub mymenu1_Click() Text1.Text = "百货大楼" End SubPrivate Sub mymenu2_Click()Text1.Text = "利客隆"End SubPrivate Sub mymenu3_Click()Text1.Text = "稻香村"End 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()运：自测练习1：Private Sub Command1_Click()Dim a As String, n%, i%, j%Open "E:\Data.txt" 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:\Datares.txt" For Output As #1 Print #1, jClose #1End Sub运行初始界面：运行结果：自测练习3：Private Sub Form_Click()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:\Data.txt" For Output As #1 文本$ = InputBox("请输入文本")n = UCase(文本$)Print a(j);Next jEnd Sub。

vb程序设计基础课后答案【篇一：《vb程序设计基础与vba应用》1-8章参考答案】s=txt>p28 习题一二，单选题1，b 2，b 3，d 4，a 5，d 6，b 7，b 8,c 9,d三, 程序设计题5, private sub command1_click()form1.fontname = 宋体form1.print 中文字体宋体end subprivate sub command2_click()form1.fontname = 楷体_gb2312form1.print 中文字体楷体end subprivate sub command3_click()form1.fontname = 仿宋_gb2312form1.print 中文字体仿宋end subp57 习题二一，判断题对:1, 3， 7，10，14错:2，4，5，6，8，9，11，12，13二，单选题1， a 2， c 3， c4， b6， a 7， b 8， c9， b11， c12， d13， b 14， a16， b17， b18， c19， b21， b 22， d 23， a24， c26， a 27， d28， b三，简答题1. (1) 2 * cos(alfa) * sin(alfa/ ( 2 * a )(2) sqr( s*(s–a)*(s–b )*(s - c))(3) ( a*a + b*c*(x +y)) / (a+b)(4) ( 2* 3.14159*r +exp(-5))* log(x) 5， b 10， c 15， d 20， b 25， b(5) 1/( x + 1/(y+1) )(6) k / ( 1 + a * exp(-b*x) )(7) cos(alfa) ^ 2 + atn(alfa)(8) sqr( y^3 + 3 * (a*a+b*b) / (x*x+y*y) )2. (1) (a+b) mod c (2) sqr(abs(x))(3) int(x) + 1(4) int(rnd *101)+2003。

vb程序设计书习题和参考答案练习题习题⼀⼀、判断题1．Visual Basic是以结构化的Basic语⾔为基础、以事件驱动作为运⾏机制的可视化程序设计语⾔。

2．⾯向对象的程序设计是⼀种以对象为基础，由事件驱动对象的编程技术。

3．事件是由Visual Basic预先定义的对象能够识别的动作。

4．新建⼯程时系统会⾃动将窗体标题设置为Form1。

5．控件的属性值不可以在程序运⾏时动态地修改。

6．决定对象是否可见的属性为Visible属性，决定对象可⽤性的属性是Enabled属性。

7．保存Visual Basic⽂件时，若⼀个⼯程包含多个窗体或模块，则系统先保存⼯程⽂件，再分别保存窗体或模块⽂件。

8．单击“启动”菜单项将窗体装⼊内存时，⼀定触发窗体的Load事件。

9．“事件过程”是⽤来完成事件发⽣后所要执⾏的程序代码。

10．在打开某窗体时，初始化该窗体中的各控件，应选⽤Load事件。

⼆、选择题1．⼯程⽂件的扩展名为。

A、.frxB、.basC、.vbpD、.frm2．下列不属于对象的基本特征是。

A、属性B、⽅法C、事件D、函数3．在设计模式双击窗体将显⽰的窗⼝是A、⼯程窗⼝B、⼯具箱C、代码窗⼝D、属性窗⼝4．VB中运⾏程序的快捷键是A、F2B、F5C、Alt+F35．改变控件在窗体中的上下位置应修改该控件的属性。

A、TopB、LeftC、WidthD、Right6.窗体模块的⽂件扩展名是A、.exeB、.basC、.frxD、frm7．设置窗体的字体⽤属性。

A、FontNameB、FontSizeC、FontBoldD、FontItalic8.设置窗体的字号⽤属性。

A、FontNameB、FontSizeC、FontBoldD、FontItalic9．下列选项中不属于事件的是。

A、DblclickB、LoadC、ShowD、KeyUp10．VB编制的程序保存在磁盘上，⾄少会产⽣何种⽂件。

A、.doc与.txtB、.com与.exe.C、.bat与.frmD、.vbp与.frm三、程序设计题1．新建⼀个⼯程，单击窗体时，在窗体上显⽰“欢迎使⽤Visual Basic程序”。

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：。

第八章程序界面设计第一题：是非题（共1（）分，每项1分）1.在-个窗体代码屮不能使用Unload语句來卸载本窗体，即一个窗体只能由其他的窗体卸载。

4A.对B.错J2.窗休的Enabled屈性设为False时，窗体题的按钮、文本框控件就不会对川户的操作做出反应。

A.对V 8.错3.菜单项的快捷键不能任意设置。

6A.対JB.错4.每个菜单项都是一个控件，与其他控件一样也有白己的屈性和事件。

7A.对JB.错5.菜单选项“Enabled”属性与“Visible”属性是相同的。

5A.对B.错J6.窗体的Enabled属性设为False时，窗体题的按钮、文本椎控件就不会対用八的操作做出反应。

2A.对JB.错7.定义菜单项时，可以不设査分隔线的菜单项控件名称。

7A.对B.错J&普通窗体与子窗体建立的方法是相同的，不同之处是子窗体的MDIChild属性设置为False,而普通窗体的MDIChild属性设置为True。

2A.对VB.错9.除了Click事件Z外，菜单项还能响应其他的事件。

5A.对B.错J10.窗体的Moveabel属性设为False时，不能改变窗体的大小，只能移动窗体。

3A.对B.错J11.显示和隐藏窗体比载入和卸载窗体要快得多。

4A.对V 8.错12.用户在“文件打开”通用对话框中选择一个文件时，对话框控件的FileName属性含有所选文件名字。

4A.对J8.错第二题、单选题（共45分，每项1.5分）1.为减少语句的使用，将一个窗体加载到内存中并显示出来，所使用的语句或方法是o 6A.LoadB.UnloadC.Show JD.Hide2.下列不能打开菜单编辑器的操作是____ o 6A.按Ctrl+EB.单击工具栏中的“菜单编辑器”按钮C.执行“工具”菜单中的“菜单编辑器”命令D.按Shift + Alt + M V3.利用菜单编辑器设计菜单时，如果要在菜单中加入一个分隔符，菜单分隔符的标题必须设置为____ 0 10A.+B.- VC.*D./4.窗体从加载到显示，依次引发的事件冇。

《VB语言程序设计》习题参考答案第1章习题一、单选题1．D 2．B 3．C 4．A 5．C 6. A 7．A 8．B 9．C 10．(1)A (2)B二、多选题1．ACDE 2．BCDE 3．CD 4. CE三、填空题1．事件驱动 2．解释，编译 3．设计，运行，中断4. 属性，方法，事件5. Command2_Click6. 中央，代码7．MyForm.frm 8. (1)Cmd1_Click() (2)Print "VB语言程序设计"编程及上机调试1. 按要求设置窗体属性2．在窗体上建立一个标签Label1。

程序代码如下：Private Sub Form_Click()Label1.Caption = "你单击了窗体"End SubPrivate Sub Form_DblClick()Label1.Caption = "你双击了窗体"End Sub3．在窗体上建立两个文本框Text1(输入数)、Text2(输出数)和一个命令按钮Command1。

两个文本框的Text属性均为空。

Private Sub Command1_Click()Dim x As Singlex = Val(Text1.Text)Text2.Text = 15 * xEnd Sub第2章习题一、单选题1．①D，②D 2．①A，②C 3．A 4．B 5．B 6．B 7．C 8．D 9．B 10．B 11．A 12．A 13．B 14．A 15．B 16．A 17．B二、多选题1．BD 2．CD 3．AC 4. AD三、填空题1．(1) Sin(50*3.14159/180) (2) (2+x*y)/(2–y*y)(3) a*a–3*a*b/(3+a) (4) x^(3/8)+Sqr(y*y+4*a*a/(x+y^3))2．Int(50+6*Rnd)3．(1)138 (2)3 (3)214 (4) "inchina" (5)70 (6) "45"(7)04. "系统管理数据库"编程及上机调试1～3题：按要求完成操作练习。

全国计算机等级考试二级VB上机考试新版题库及解析【2013年3月考试专用】考前复习必看资料：PiaoMo整理—1—第一套上机题题干166一、基本操作题请根据以下各小题的要求设计Visual Basic 应用程序(包括界面和代码)。

(1)在名称为Form1的窗体上建立一个名称为Command1的命令按钮数组，含三个命令按钮，它们的Index 属性分别为0、1、2，标题依次为"是"、"否"、"取消"，每个按钮的高、宽均为300、800。

窗体的标题为"按钮窗口"。

运行后的窗体如图1所示。

注意：存盘时必须存放在考生文件夹下，工程文件名为sjt1.vbp ，窗体文件名为sjt1.frm 。

图1【操作步骤】步骤1：新建一个"标准EXE"工程，如表1在窗体中用"复制"和"粘贴"画出控件数组并设置属性。

表1(2)在名称为Form1的窗体上画一个名称为Sha1的形状控件，然后建立一个菜单，标题为"形状"，名称为shape0，该菜单有两个子菜单，其标题分别为"正方形"和"圆形"，其名称分别为shape1和shape2，如图2所示，然后编写适当的程序。

程序运行后，如果选择"正方形"菜单项，则形状控件显示为正方形；如果选择"圆形"菜单项，则窗体上的形状控件显示为圆形。

注意：程序中不能使用变量，每个事件过程中只能写一条语句。

保存时必须存放在考生文件夹下，工程文件名为sjt2.vbp ，窗体文件名为sjt2.frm 。

图2【操作步骤】步骤1：新建一个"标准EXE"工程，在窗体Form1中画一个名为Sha1的形状控件。

步骤2：选择【工具】→【菜单编辑器】命令，打开菜单设计器，如表2中的设置建立菜单项。

V B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"= "确定"= True= True= "Visual Basic程序设计教程"End Subex0102Private Sub Command1_Click()= "我有电脑"End SubPrivate Sub Command2_Click()= "我没有电脑"End SubPrivate Sub Command3_Click()= "" '一对双撇号，中间不留空End Subex0104Private Sub Command1_Click()Dim x As Singlex = Val= 15 * xEnd Subex0202Private Sub Form_Click()Dim r As Single, s As Singler =s = * r ^ 2= "圆的面积为" & sEnd Subex0204Private Sub Command1_Click() '"最大化"按钮= 2 '最大化End SubPrivate Sub Command2_Click() '"还原"按钮= 0 '还原Private Sub Command3_Click() '"最小化"按钮= 1 '最小化End Subex0205Private Sub command1_click()Dim x As SingleDim y As Singlex = Valy = Val= x * x + y * yEnd Subex0206Private Sub command1_click()Dim x As Stringx == 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 = ValRandomizex = Int(1 + n * Rnd)= "第一个随机数" + Str(x)x = Int(1 + n * Rnd)= "第二个随机数" + Str(x)x = Int(1 + n * Rnd)= "第三个随机数" + Str(x)ex0303Private Sub Cmd1_Click()= True= "您已下达显示命令"End SubPrivate Sub Form_Click()= 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 = Valb = Valc = Vald = ValIf 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 If= xEnd Subex0403Private Sub Command1_Click()Dim t As String, p As Stringt = Mid, 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 Select= Left, 2) + "级"= pEnd Subex0404Private Sub Command1_Click()r = 0: g = 0: b = 0If = 1 Thenr = 255End IfIf = 1 Theng = 255End IfIf = 1 Thenb = 255End If= RGB(r, g, b)End SubPrivate Sub Command2_Click()EndEnd Subex0405Private Sub Form_Load()= "0"= 1= 1= 22= "黑体"= 1000End SubPrivate Sub TimClk_Timer()= Val + 1End Subex0406Private Sub Form_Load()= False= FalseEnd SubPrivate Sub Text1_MouseUp(Button As Integer, Shift As Integer, X As Single, Y As Single) If > 0 Then= TrueEnd IfEnd SubPrivate Sub Command1_Click()= True= TrueEnd SubPrivate Sub Command2_Click()== False= 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 + / 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 = : 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 k= yEnd Subex0507Private Sub Command1_click() '"显示"按钮单击事件FontSize = 12ClsFor i = 0 To - 1 '逐项判断If (i) Then '真时为选定Print (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)= 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()End Subex0705APrivate Sub C2_Click()End Subex0706Dim n As IntegerPrivate Sub Command1_Click()usern = Trimpassw = TrimIf usern = "username" And passw = "password" ThenElsen = n + 1If n = 3 ThenEnd IfEnd If= ""= ""End Subex0706APrivate Sub Command1_Click()End 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 k= s '显示在文本框中= ""= False '允许录入'设置焦点= ""= ""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 < 30 Then= 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, k, 1) = Mid, k, 1) Thenc = c + 1End IfNext k= True '禁止录入= 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, xxLoopClose #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)d(i)Next iEnd SubPrivate Sub Command2_Click() '"保存"Open "" For Output As #1For i = 1 To 20Write #1, d(i)Next iClose #1End SubPrivate Sub Command3_Click() '"读出"Open "" For Input As #1Do While Not EOF(1)Input #1, xxLoopClose #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\"If Dir(chefile) <> "" ThenFileCopy chefile, chedir & "\"End IfMsgBox "操作完毕！"End Subex1002Private Sub A1_Click()= vbRedEnd SubPrivate Sub A2_Click()= vbBlueEnd SubPrivate Sub A3_Click()= 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()= "选择文件"= "文本文件|*.txt"= "C:\"=End SubPrivate Sub Command2_Click()Unload MeEndEnd Subex1101Private Sub calzc(x As Integer)= Round(2 * * x, 2)End SubPrivate Sub HV_Scroll()Dim r As Integerr == "=" & rCall calzc(r)End SubPrivate Sub Form_Load()= 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)= 20Select Case IndexCase 0"箭头向上"Case 1"箭头向左"Case 2"箭头向右"Case 3"箭头向下"End SelectEnd Sub。

V B 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 BasicEnd Sub ex0102Private Sub Command1_Click()Txt.Text = " 我有电脑 "End SubPrivate Sub Command2_Click()Txt.Text = " 我没有电脑 " EndSub程序设计教程Private 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 Sub ex0202Private Sub Form_Click()Dim r As Single, s As Singler = 4.6s = 3.14159 * r A 2Text1.Text = " 圆的面积为 " & sEnd Subex0204Private Sub Command1_Click() '"Form1.WindowState = 2 ' End Sub最大化 " 按钮最大化Private Sub Command2_Click() '"Form1.WindowState = 0 '还原 "按钮还原End SubPrivate Sub Command3_Click() '"Form1.WindowState = 1 '最小化 " 按钮最小化End Sub ex0205Private Sub command1_click()Dim x As SingleDim y As Singlex = Val(Text1.Text)y = Val(Text2.Text)Text3.Text = x * x + y * y End Sub ex0206Private Sub command1_click()Dim x As Stringx = Text1.TextText2.Text = Left(x, 1) + Right(x, 1)End Sub ex0301 Private Sub Form_Load()Dim x As Integer, y As IntegerDim a As Integer, b As Integer, c As Integer x = 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 Sub ex0302Private 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)End Sub 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 ;"; KeyAscii End SubPrivate Sub Form_DblClick()ClsEnd Sub ex0305 Private 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, " x = MsgBox(" 在这里显示 " + Chr(13) + " 提示信息 ", 2 + 16 + 0,End Sub ex0401Private Sub Form_Load()Dim x As Long, s As Stringx = In putBox(" 输入一个整数(1 〜35000)")s = " 奇数"If x Mod 2 = 0 Then s = " 偶数"MsgBox s End Sub ex0402Private 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 = x 请确认")请确认")End Subex0403Private Sub Command1_Click()Dim t As String, p As String t = 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) + "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 Sub ex0406 Private 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 Sub ex0501 Private Sub Form_Load()Dim k As Integer, s As Integer, t As Integers = 0For k = 1 To 100 Step 2s = s + kNext kShowPrint "1 〜100范围内的奇数和：";sEnd Sub ex0502 Private 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 Sub ex0503 Private Sub Form_Load()Showk = 2Do While k < 101s = s + k * (k - 1)k = k + 2LoopPrint sEnd Subex0504Private Sub Form_Load()Dim k As Integer, a As Integer, b As IntegerDim 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 Sub ex0505Private 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()FontSize = 12ClsFor i = 0 To List1.ListCount -1If List1.Selected(i) Then '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 y = b * 1000 + a * 100 + a z = d * 100 + d * 10 + a If x - y = z ThenPrint "A=" & a & ",B=" & b & ",C=" & c & ",D=" & d End IfNext dNext cNext bNext aEnd Sub ex0601Private Sub Command1_Click()Dim a(10) As Integer, min As Integer, pos As Integer RandomizeFor i = 1 To 10 a(i) = Int(Rnd * 90 + 10) Print a(i);Next iPrintmin = a(1)pos = 1For k = 2 To 10 If a(k) < min Then min = a(k) pos = k 10 + d 10 + c 显示 "按钮单击事件逐项判断 真时为选定Next kPrint " 最小数： "; min, " 位置： "; posEnd Sub ex0602Private 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 8 c(k) = a(k) + b(k)Next kShowFor k = 0 To 8Print c(k)Next kEnd Sub ex0603 Private Sub Form_Load()Dim d() As IntegerDim k As Integer, t As Integer, m As IntegerDim 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 m h = n - k + 1 t = d(h): d(h) = d(k): d(k) = t Next 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 IntegerShown = 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 Then s = s + a(i, j)End IfNext jNext iPrint " 所有靠边元素之和； "; sEnd Sub ex0605 Option Base 1Private Sub Form_Load()Dim a(8, 8) As Integer, n As IntegerDim max As Integer, r As Integer, c As Integer Show Randomizen = 8For i = 1 To nFor j = 1 To nx = Int(900 * Rnd + 100) '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 'max = a(i, j): r = i: c = jEnd IfNext j, iPrint " 最大值为： "; maxPrint " 位于行： "; r, " 列： "; c End Sub ex0606 Dim n As IntegerPrivate Sub Cmd1_Click()n = n + 1If n = 3 Then n = 0Opt1(n).Value = True End SubPrivate Sub Form_Load()n = 1End Sub ex0607Private Sub Form_Load()Dim a(20) As IntegerRandomizea(1) = Int(10 + 90 * Rnd)k = 1Do While k < 20x = Int(10 + 90 * Rnd) 产生一个随机数判断有无更大数For j = 1 To kIf x = a(j) Then f = 1 Exit ForEnd IfNext jIf f = 0 Thenk = k + 1 a(k) = xEnd IfLoopShowFor j = 1 To 20Print a(j)Next jEnd Sub ex0701Private Sub Form_Click() Dim s As Long s = 0For k = 1 To 10 s = s + jc(k)Next kPrint sEnd SubFunction jc(n) As LongDim t As Longt = 1For k = 1 To nt = t * kNext kjc = tEnd Functionex0702Private Sub Form_Load()Dim a As Single, b As Single, c As Single Dim d As Single, m As Single, n As Single Showa = 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) 'n = max(c, d) 'Print " 最大数为： " & max(m, n) End SubFunction max(x, y) As SingleIf x > y Then max = xElsemax = y 求a、 b 中的较大数求c、 d 中的较大数求m、n 中的较大End Function ex0703Private 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 Sub ex0704Private Sub Form_Load() Dim x As Long Showx = Val(InputBox(" 输入一个数 "))Print x; " 的位数为： "; fnws(x) End SubFunction fnws(x As Long) As Integer Dim n As Integer n = 1 Do While x \ 10 > 0n = n + 1x = x \ 10 Loop fnws = nEnd Function ex0705Private Sub C1_Click()Form1.HideEnd Sub ex0705APrivate Sub C2_Click()Form1.ShowEnd Sub ex0706 Dim 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 Sub ex0802 Private Sub Form_Load()Dim i As Integer, j As IntegerShowFor i = 1 To 12Print String(20 - i, 32); ' For j = 1 To 2 * i - 1 'If j <= i Then 'k = j 'Elsek = 2 * i - j 'End IfIf k > 9 Then k = k + 7 ' Print Chr(k + 48); 'Next jPrint ' 输出当前行左边的空格，分号表示下一输出项紧接输出输出2*i-1 个字符按左、右两边指定输出字符左边输出的字符右边输出的字符字母的ASCII 码比数字大7 以字符格式输出换行End SubDim t As Single, f As IntegerPrivate Sub Command1_Click()RandomizeIII! For k = 1 To 30If Mid(Text1.Text, k, 1) = Mid(Text2.Text, k, 1) Then c = c + 1End IfNext k Text2.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 Sub ex0902 产生原稿文”按钮x = Chr(Int(Rnd * 26) + 97) 's = s + xNext kText1.Text = s 'Text2.Text = ""Text2.Locked = False 'Text2.SetFocus 'Text3.Text = ""Text4.Text = ""f = 0 'End SubPrivate Sub Command2_Click()' EndEnd SubPrivate Sub Text2_KeyUp(KeyCode As Integer,Dim c As Integer, k As IntegerIf f = 0 Then' t = Timer' f = 1'1 End IfIf Len(Text2.Text) < 30 ThenText3.Text = Round(Timer - t, 1) & "Elsec = 0For k = 1 To 30 ' 随机产生小写字母 显示在文本框中 允许录入 设置焦点 第 1 次按键标记， 0 表示未按键 “结束”按钮 As Integer) 第 1 次按键时，开始计时 用t 保存第1次按键的时间 表示已按键和进入录入过程 秒 " ' 显示用户当前所用时间统计录入正确的字母个数Dim d(1 To 20) As IntegerPrivate Sub Command1_Click() '" 产生随机数 "For i = 1 To 20 d(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, x List2.AddItem xLoopClose #1End SubPrivate Sub Command4_Click() '" 结束 "EndEnd Sub ex0903 Private Sub Form_Load()ShowFor k = 1 To 6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 Integer r = HV.ValueText1.Text = "=" & rCall calzc(r)End SubPrivate Sub Form_Load()HV.Max = 300End Subex1102Private Sub Form_Load()For k = 0 To 3 Image1(k).Stretch = TrueImage1(k).Picture = LoadPicture(" 箭头 " & k + 1 & ".bmp")Next kEnd SubPrivate Sub Image1_Click(Index As Integer) Picture1.ClsSelect Case IndexCase 0Picture1.Print "Case 1箭头向上 "Picture1.Print " Case 2Picture1.Print " Case 3 箭头向左 " 箭头向右 "Picture1.Print "End SelectEnd Sub箭头向下 "。

VB语言程序设计课后编程及上机调试参考答案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End SubPrivate 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 Integer x = 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) End Subex0303Private 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 Single Showa = 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 String t = 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) + 1 End 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) / 10 End 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 ThenPrint 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 + d y = b * 1000 + a * 100 + a * 10 + c z = d * 100 + d * 10 + aIf x - y = z ThenPrint "A=" & a & ",B=" & b & ",C=" & c & ",D=" & dEnd 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 Integer ShowRandomizen = 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 Then s = 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 Integer ShowRandomizen = 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()n = 1End 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 Long Dim t As Longt = 1For k = 1 To nt = t * kNext kjc = tEnd 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 Single For 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 Integer Dim 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" ThenForm1.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k = 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Next 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, ShiftAs 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 #1 For 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.FileName End 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 Sub41。

自测1程序代码Private Sub Command1_Click()Label1.FontSize = Label1.FontSize + 3 End 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4Private 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 SubText3.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.CaptionEnd 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i = 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"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：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：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 < 20Case 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);For 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 = 10000Form1.Height = 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) + 1Next 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 4Next 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 SubDim 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)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) ThenEnd 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 i运行初始界面：插入数据：运行结果：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 = 2Label1.FontSize = 24Label1.FontName = "黑体"Label1.ForeColor = &HFF&Private 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：自测练习6：Private Sub Command1_Click()For i = 0 To Combo1.ListCount - 1If Combo1.List(i) = Combo1.Text Then Exit ForEnd IfNext iIf i > Combo1.ListCount - 1 Then Combo1.AddItem Combo1.TextEnd SubPrivate Sub Command2_Click()If Combo1.ListIndex <> -1 Then Combo1.RemoveItem Combo1.ListIndex For i = 0 To Combo1.ListCount - 1If Combo1.List(i) = Combo1.Text Then Combo1.RemoveItem iEnd IfExit ForNext iEnd IfEnd SubPrivate Sub Command3_Click()Combo1.ClearEnd Sub运行初始界面:自测练习7：Private Sub Command1_Click()Timer1.Interval = 1Timer1.Enabled = TrueEnd SubPrivate Sub Form_Load()lbltemp1.FontSize = 20Label1.FontSize = 20Label2.FontSize = 20End SubPrivate Sub Timer1_Timer() VSbwd.Value = VSbwd.Value + 10 lbltem = VSbwd.ValueIf VSbwd >= 100 Thenlbltishi = "水开了"Timer1.Enabled = FalseEnd IfEnd Sub运行初始界面：运行结果：自测练习1：Private Sub myhelp_Click() frmAbout.ShowEnd SubPrivate Sub mymenu1_Click() Text1.Text = "百货大楼"End SubPrivate Sub mymenu2_Click() Text1.Text = "利客隆"End SubText1.Text = "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()Text1.Text = "菜单程序设计"Text1.FontSize = 20Text1.FontName = "黑体"End SubPrivate Sub Hid_Click()Text1.Visible = 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() CommonDialog1.Action = 1List1.AddItem CommonDialog1.FileName End 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:\Data.txt" 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:\Datares.txt" For Output As #1 Print #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$Open "e:\txt2.txt" For Input As #1Do While Not EOF(1)Line Input #1, x$LoopClose #1Open "e:\txt1.txt" For Append As #1Print #1, x$Close #1End Sub运行初始界面：自测练习4Private Sub Form_load()Print " 26个英文字母"PrintPrint " a b c d e f g h i j k l m n o p q r s t u v w x y z"Print "字母个数分别为"End SubPrivate Sub Form_Click()Open "E:\Data.txt" For Output As #1文本$ = InputBox("请输入文本")n = UCase(文本$)Print #1, nClose #1Dim a%()Open "E:\Data.txt" For Output As #1For 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。

VB课后习题解答第一、二章:1、简述VB6.0的主要特点答：方便、直观的可视化设计工具；面向对象程序设计方法；事件驱动的编程机制；易学易用的应用程序集成开发环境；结构化程序设计语言；完备的联机帮助功能；强大的多媒体、数据库和网络功能。

2、当正常安装VB6.0后，误把Windows子目录删除。

当重新安装Windows后，是否需要再次安装VB6.0 ？答：要重新安装的。

因为安装VB6.0时，有些VB程序被系统自动安装在Windows目录下，所以一旦删除Windows子目录，就必须重新安装VB6.0。

3、Visual Basic 6.0分为学习版、专业版和企业版，如何知道所安装的是哪个版本？答：在VB6.0的启动界面上，能显示对应的版本。

4、叙述建立一个完整应用程序的过程答：首先建立用户界面的控件对象（简称控件）；然后对控件属性进行设置；再对控件事件过程及编程；保存应用程序；程序调试和运行。

5、Visual Basic 6.0有多种类型窗口，若要在设计时看到代码窗口，应怎样操作？答：选择“视图”一＞“代码窗口”命令或单击“工程资源管理器”窗口中的“查看代码”按钮。

6、当建立好一个简单的应用程序后，假定该工程仅有一个窗体模块。

试问该工程涉及多少个要保存的文件？若要保存该工程的所有文件，应先保存什么文件？再保存什么文件？若不这样做，系统会出现什么信息？答：涉及两个文件要保存。

先保存窗体文件（.frm），再保存工程文件（.vbp）。

若先保存工程文件，系统也会先弹出“文件另存为”对话框，要求先保存窗体文件。

7、保存文件时，若不改变目录名，则系统默认的目录是什么？答：系统默认的目录是VB98& 安装Visual Basic 6.0后，帮助系统是否也已安装？答：没有。

VB6.0的帮助系统在两张光盘上，即MSDN Library，其中还包含了VC、VFP等其他语言的帮助系统。

9、如何使用Visual Basic 6.0的帮助系统？答：最方便的方法是选定要帮助的内容，然后按F1功能键，这时系统打开MSDN Library查阅器，直接显示与选定内容有关的帮助信息。

第八章后习题参考答案一、单选题1．C 2. D 3. C 4. B 5. B二、填空题1．通用2．过程，Static ID As Integer3．模块级4．可变参数三、程序阅读题1．50 10025 10012 1002．1 2 44 7 1212 20 33四、思考题1．出错。

2．出错，因为赋值号的左边应为函数名Fact，不能为函数调用。

实验：1．Private Sub DToB(A As Long)Dim B As String, a1 As Longa1 = AB = ""Do While A <> 0B = (A Mod 2) & BA = A \ 2LoopPrint "十进制数"; a1; "转换二进制数为"; BEnd SubPrivate Sub Command1_Click()Dim A As LongA = InputBox("请输入十进制数")DToB (A)End Sub2．Option ExplicitFunction Prime(ByV al A As Long) As BooleanDim I As IntegerFor I = 2 To Sqr(A)If A Mod I = 0 Then Exit ForNext IIf I > Sqr(A) ThenPrime = TrueElsePrime = FalseEnd IfEnd FunctionPrivate Sub Command1_Click()Dim A As Long, B As LongDim N As LongDoN = V al(InputBox("请输入一个偶数"))Loop While N / 2 <> N \ 2 Or N < 6For A = 3 To N / 2 Step 2If Prime(A) ThenB = N - AIf Prime(B) ThenMsgBox Str(N) & "=" & Str(A) & "+" & Str(B)Exit ForEnd IfEnd IfNext AEnd Sub3．方法1，使用模块级变量，其值在各个过程中可用，且在静态存储区，应用程序结束运行时才释放。

第1章概述二．选择题：1.C2. B.3.C.4.C.5.A6.C7.D8.B9.B 10.B11.A12.C 13.D 14.C 15.D16.A17.C 18.A19.A20.D 21.B三．填空题：1.面向对象，事件驱动2.编译，解释3.设计，运行，中断4.F55.调试6.切换文件夹四．编程及上机调试：1．略2．Sub Form_Click( )Label1.Caption = “你单击了窗体”End SubSub Form_DblClick( )Label1.Caption = “你双击了窗体”End Sub第2章面向对象编程基础二．选择题：1.C2. C.3.B.4.B.5.D6.D7.B8.B9.C 10.D11.B 12.B 13.B 14.C 15.A16.B 17.B 18.B 19.C 20.B三．填空题：1.窗体，控件2.属性，事件，方法mand2_click4.picture5.中部，代码四．编程及上机调试：1．Private Sub Command1_Click()Form1.WindowState = 2End SubPrivate Sub Command2_Click()Form1.WindowState = 0Private Sub Command3_Click()Form1.WindowState = 1End Sub2．Private Sub Command1_Click()Form1.Picture = LoadPicture("d:\picture\flower.wmf")Command1.V isible = FalseCommand2.V isible = FalseEnd SubPrivate Sub Command2_Click()EndEnd SubPrivate Sub Form_DblClick()Form1.Picture = LoadPicture("")Command1.V isible = TrueCommand2.V isible = TrueEnd Sub第3章常用标准控件二．选择题：1.C2. B3.C.4.D5.B6.B7.A8.C9.B 10.C11.C 12.A13.C 14.B 15.D16.D 17.C 18.A19.D 20.A21.B三．编程及上机调试：1.Private Sub Check1_Click()If Check1.V alue = 1 ThenText1.FontBold = TrueElseText1.FontBold = FalseEnd IfEnd SubPrivate Sub Check2_Click()If Check2.V alue = 1 ThenText1.FontItalic = TrueElseText1.FontItalic = False End IfEnd SubPrivate Sub Check3_Click()If Check1.V alue = 1 ThenText1.FontUnderline = True ElseText1.FontUnderline = False End IfEnd SubPrivate Sub Command1_Click() Text1.Text = " "End Sub2.Private Sub Command1_Click() Text2.Text = List1.ListCount End SubPrivate Sub Command2_Click() List1.AddItem Text1.TextText1.Text = " "End SubPrivate Sub Command3_Click() Dim i As Integeri = List1.ListIndexList1.RemoveItem iCommand3.Enabled = FalseText1.SetFocusText2.Text = List1.ListCount End SubPrivate Sub Form_Load()Command3.Enabled = False End SubPrivate Sub List1_Click()Command3.Enabled = True End Sub第4章VB语言基础二．选择题：1.A2. D3.D.4.A5.A6.A7.C8.D9.C 10.B11.A 12.D 13.C 14.A15.A16.C 17.D 18.A19.B 20.D21.C 22.A23.B 24.C 25.C三．编程及上机调试：1．Private Sub Form_Load()Dim x As Integer, s As String, d As IntegerRandomizex = Int(Rnd * 9000 + 1000)s = Trim(CStr(x))d = V al(Right(s, 1) + Mid(s, 3, 1) + Mid(s, 2, 1) + Left(s, 1))ShowPrint "产生的数；"; x; "倒序数"; dEnd Sub2．Private Sub Form_KeyPress(KeyAscii As Integer)Print "输入字符:"; Chr(KeyAscii), "ASCII码为:"; KeyAsciiEnd SubPrivate Sub Form_DblClick()ClsEnd Sub3．Private Sub Form_Click()MsgBox "在这里显示提示" & vbCrLf & "提示信息", 2 + 16, "请确认"End Sub或Private Sub Form_Click()MsgBox "在这里显示提示" + Chr(13) + "提示信息", vbAbortRetryIgnore _ + vbCritical, "请确认"End Sub第5章程序控制结构二．单选题1.D2. C3.C.4.D.5.B6.C7.A8.A9.D 10.C11.C 12.C 13.B 14.B四．编程及上机调试1. Private Sub Form_Click()Dim x As Integer, y As Integerx = InputBox("请输入一个数值")If x > 20 Theny = x ^ 2 + 3 * x + 2ElseIf x >= 10 Theny = Sqr(3 * x) - 2ElseIf x > 0 Theny = 1 / x + Abs(x)End IfPrint "x="; x, "y="; yEnd Sub（2）Select Case实现：Private Sub Form_Click()Dim x As Integer, y As Integerx = InputBox("请输入一个数值")Select Case xCase Is > 20y = x ^ 2 + 3 * x + 2Case Is >=10y = Sqr(3 * x) - 2Case Is > 0y = 1 / x + Abs(x)End SelectPrint "x="; x, "y="; yEnd Sub2.Private Sub Form_Click()Dim a As Integer, b As Integer, c As IntegerFor i = 100 To 999a = i \ 100b = (i - a * 100) \ 10c = i Mod 10If a ^ 3 + b ^ 3 + c ^ 3 = i ThenPrint i;k = k + 1If k Mod 2 = 0 Then PrintEnd IfNext iEnd Sub3．Private Sub Command1_Click()p = 60: r = 0.014Dop = p * (1 + r)n = n + 1Loop Until p >= 70Print n; "年后世界人口达到"; p; "亿"End Sub4．Private Sub Command1_Click()Dim s As Single, x As Integer, t As Single, n As Integer x = V al(InputBox("请输入x的值", , 2))s = 1n = 1m = 1Don = n + 1m = -mt = m * n / x ^ (n - 1)If Abs(t) < 0.00001 Then Exit Dos = s + tLoopPrint sEnd Sub第6章数组二．单选题：1.A2.A.3.A4.C5.D6.D7.A8.D9.B 10.B四.编程及上机调试:1.Option Base 1Private Sub Form_Click()Dim a(10) As IntegerDim i As Integer, t As IntegerPrint "数组的原始数据为：";For i = 1 To 10a(i) = Int(11 * Rnd) + 10Print a(i);Next iPrintPrint "变化后数组数据为：";For i = 1 To 5t = a(i)a(i) = a(10 - i + 1)a(10 - i + 1) = tNext iFor i = 1 To 10Print a(i);Next iEnd Sub2.Option Base 1Private Sub Form_Click()Dim a(3, 4) As Integer, i As Integer, j As Integer, k As Integer, p As Integer RandomizeFor i = 1 To 3For j = 1 To 4a(i, j) = Int(90 * Rnd + 10)Print a(i, j);Next jPrintNext iMax = a(1, 1): k = 1: p = 1For i = 1 To 3For j = 1 To 4If a(i, j) > Max ThenMax = a(i, j)k = ip = jEnd IfNext jNext iPrint "最大的数为第" & k & "行，第" & p & "列的数：" & MaxEnd Sub3.Option Base 1Dim a(4, 5) As Integer '在窗体声明段声明数组Dim i As Integer, j As IntegerPrivate Sub cmdmatrix_Click() '"生成数组"按钮RandomizeFor i = 1 To 4For j = 1 To 5a(i, j) = Int(Rnd * 10) '一位的随机数Picture1.Print a(i, j); '输出元素Next jPicture1.PrintNext iEnd SubPrivate Sub cmdcol_Click() '"求列和"按钮Dim colsum As Integertxtcol.Text = ""For j = 1 To 5 '列变量先循环colsum = 0For i = 1 To 4colsum = colsum + a(i, j)Next itxtcol.Text = txtcol.Text & Str(colsum)Next jEnd SubPrivate Sub cmdrow_Click() '"求行和"按钮Dim rowsum As Integertxtrow.Text = ""For i = 1 To 4 '行变量先循环rowsum = 0For j = 1 To 5rowsum = rowsum + a(i, j)Next jtxtrow.Text = txtrow.Text & CStr(rowsum) & vbCrLf Next iEnd SubPrivate Sub cmdclear_Click() '"清除"按钮Picture1.Clstxtcol.Text = ""txtrow.Text = ""End SubPrivate Sub cmdexit_Click() '"结束"按钮EndEnd Sub4. Option Base 1Private Sub Form_Click()Dim a() As Integer, b() As Integer, i As Integer, j As Integer, x As Integer, y As Integer x = InputBox("第一维上界")Do While Not IsNumeric(x)x = Int(InputBox("第一维上界"))Loopy = InputBox("第二维上界")Do While Not IsNumeric(x)y = Int(InputBox("第二维上界"))LoopReDim a(x, y)Print "原数组元素为："For i = 1 To xFor j = 1 To ya(i, j) = Int(90 * Rnd) + 10Print a(i, j);Next jPrintNext iPrint "转置后数组元素为："For i = 1 To yFor j = 1 To xPrint a(j, i);Next jPrintNext iEnd Sub5. Option Base 1Private Sub Form_Click()Dim a(10, 10) As Integer, i As Integer, j As IntegerFor i = 1 To 10For j = 1 To 10If i = j Or i + j = 11 Thena(i, j) = 0Elsea(i, j) = 1End IfPrint a(i, j);Next jPrintNext iEnd Sub6. Option ExplicitOption Base 1Private Sub Command1_Click()Dim i As Integer, j As Integer, n As Integer, k As Integer, a(11) As Integerj = 1For i = 3 To 21 Step 2a(j) = iPrint a(j);j = j + 1Next iPrintn = InputBox("请输入一个数")For i = 1 To 10If n = a(i) ThenFor j = i To 10a(j) = a(j + 1)k = k + 1Next jEnd IfNext iFor i = 1 To 9Print a(i);Next iEnd Sub7. Option Base 1Private Sub Form_Click()Dim a As V ariant, k As Integer, i As Integer, j As IntegerDim b As V ariantb = Array(17, 35, 128, 235, 89, 121, 143, 189, 231, 94)a = Array(11.3, 12.3, 12#, 11.8, 12.6, 11.6, 12.8, 11.8, 12.4, 12.1)For i = 1 To 9 '对数组a的元素排序k = iFor j = i + 1 To 10If a(k) > a(j) Then k = jNext jIf k <> i Then '数组b的元素随数组a的元素一起变动t = a(i)a(i) = a(k)a(k) = tt = b(i)b(i) = b(k)b(k) = tEnd IfNext iPrint "按名字的排列顺序为："For i = 1 To 10If Len(b(i)) = 2 Then b(i) = "0" & b(i) '补上数组b中长度为２的编号前的"0"Print "第" & i & "名的号码为：" & b(i) & "，成绩为：" & a(i)Next iEnd Sub第7章过程二、单选题1.C2. D3.C4.D5. B6.A7. B8.B9.C 10.D11.C 12.D 13.B 14.B 15.C16.A17.B 18.B三、填空题1．52 512．4 118 353．1 3 5四.编程及上机调试:1. Private Sub Command1_Click()Dim n As IntegerFor n = 100 To 1600 Step 500Print "n="; n; "时π的近似值是："; pi(n)Next nEnd SubPrivate Function pi(x As Integer) As SingleDim s As Single, k As Integer, m As Integers = 0k = 1m = 1Dos = s + m / km = -mk = k + 2Loop While k <= xpi = 4 * sEnd FunctionPrivate Sub Command2_Click()EndEnd Sub2. Private Sub Command1_Click()Dim x As Integer, i As Integerx = V al(Text1)For i = 1 To xIf prime(i) And prime(x - i) ThenLabel2 = Str(x) & "是" & Str(i) & "和" & Str(x - i) & "两个素数之和"Exit SubEnd IfNext iEnd SubPrivate Function prime(x As Integer) As BooleanFor i = 2 To Int(Sqr(x))If x Mod i = 0 Thenprime = FalseExit FunctionEnd IfNext iprime = TrueEnd FunctionPrivate Sub Command2_Click()EndEnd Sub3. Option ExplicitOption Base 1Dim a(10) As IntegerPrivate Sub Command1_Click()RandomizeDim i As IntegerFor i = 1 To 10a(i) = Int(Rnd * 90) + 10Text1 = Text1 + Str(a(i))Next iCall sort(a)For i = 1 To 10Text2 = Text2 + Str(a(i))Next iEnd SubPrivate Sub sort(a() As Integer)Dim k As Integer, i As Integer, j As Integer, t As Integer k = UBound(a)For i = 1 To k - 1For j = i + 1 To kIf a(i) < a(j) Thent = a(i)a(i) = a(j)a(j) = tEnd IfNext jNext iEnd SubPrivate Sub Command2_Click()EndEnd Sub4. Option ExplicitPrivate Sub Command1_Click()Dim i As Integer, j As Integer, s As IntegerFor i = 2 To 1000S=0For j=1 To i - 1If I mod j=0 Then s=s+jNext jIf s=i Then Print I,Next iEnd Sub5. Public a(10) As IntegerPublic Sub sort(a() As Integer)Dim i As Integer, j As Integer, t As IntegerFor i = 1 To UBound(a) - 1For j = i + 1 To UBound(a)If a(i) > a(j) Thent = a(i)a(i) = a(j)a(j) = tEnd IfNext jNext iEnd SubPublic Function max(a() As Integer) As Integermax = a(1)For i = 2 To UBound(a)If max < a(i) Thenmax = a(i)End IfNext iEnd Function窗体Form1代码Private Sub Command1_Click()Dim i As IntegerRandomizeFor i = 1 To UBound(a)a(i) = Int(Rnd * 90) + 11Text1 = Text1 & Str(a(i))Next iEnd SubPrivate Sub Command2_Click()Form1.HideForm2.ShowEnd SubPrivate Sub Command3_Click()Text2 = max(a)End SubPrivate Sub Command4_Click()EndEnd Sub窗体Form2代码Private Sub Command1_Click()Call sort(a)For i = 1 To UBound(a)Text1 = Text1 & Str(a(i))Next iEnd SubPrivate Sub Command2_Click()Form2.HideForm1.ShowEnd Sub第8章程序调试二．上机调试题1. Option ExplicitPrivate Sub Form_Click()Dim a() As Single, i As IntegerDim y As Singlei = 1DoReDim a(i) …改为ReDim Preserve A(I) a(i) = 1 / fib(i)If a(i) <= 0.0001 Then Exit Do …改为a(i) < 0.0001 y = y + a(i)i = i + 1LoopPrint "y="; yFor i = 1 To UBound(a)Print a(i);Next iEnd SubPrivate Function fib(i As Integer) As IntegerIf i = 1 Thenfib = 1ElseIf i = 2 Thenfib = 2ElseFib（i）= fib(i - 1) + fib(i - 2) …改为Fib=Fib(I-1)+Fib(I-2) End IfEnd Function2. Option ExplicitPrivate Sub Command1_Click()Dim i As Integer, k As Integer, st As StringFor i = 10 To 500If wanshu(i) Thenst = CStr(i)Text1.Text = Text1.Text & stCall test(st)Text1.Text = Text1.Text & Chr(13) & Chr(10)End IfNext iEnd SubPrivate Function wanshu(n As Integer) As BooleanDim i As Integer, sum As IntegerFor i = 2 To n – 1 …改为i=1If n Mod i = 0 Thensum = sum + iEnd IfNext iIf sum = n Then wanshu = TrueEnd FunctionPrivate Sub test(s As String)Dim i As Integer, sum As Integersum = 0 …位置错，和for 语句位置调换Do While Len(s) > 1For i = 1 To Len(s)sum = sum + V al(Mid(s, i, 1))Next iText1.Text = Text1.Text & "->" & Str(sum)s = Str(sum) … 改为s = CStr(sum) LoopEnd Sub第9章数据文件一、单选题1．B 2．C 3．A 4．B 5．C6．B 7．C 8．B 9．10．A11. 12.A13. 14. 15.A16.B二、编程及上机调试1．Private Sub Form_Load()Open "d:\my\text2.txt" For Output As #1End SubPrivate Sub Text1_keyPress(KeyAscii As Integer)If KeyAscii = 13 ThenIf Trim(Text1) = "0000" ThenClose #1EndEnd IfWrite #1, Text1Text1.Text = ""End IfEnd Sub2．Option ExplicitPrivate Type Studentname As String * 10age As IntegerEnd TypePrivate Sub Command1_Click()Dim Stu As StudentOpen "d:\my\text2.txt" For Random As #1 Len = Len(Stu) = "WangY ing"Stu.age = 20Put #1, , StuClose #1Open "d:\my\text2.txt" For Random As #1 Len = Len(Stu)Get #1, , StuPrint "姓名：", Print "年龄：", Stu.ageClose #1End Sub第10章其它控件二、选择题1．B 2．B 3．B 4．C 5．6．A,C 7．A 8．9．10．11. 12.B 13.三、填空题1．菜单编辑器2．下拉式菜单弹出式3．顶4．PopupMenu5．多文档窗体6．MDIChild7．Private Sub HScroll1_Change()text1 = HScroll1.V alueEnd SubPrivate Sub HScroll1_Scroll()text1 = HScroll1.V alueEnd Sub8．Private Sub Toolbar1_ButtonClick(ByV al Button As MSComctlLib.Button) Select Case Button.IndexCase 1Form1.BackColor = vbRedCase 2Form1.BackColor = vbGreenCase 3Form1.BackColor = vbBlueEnd SelectEnd Sub四、编程及上机调试1．Private Sub Picture1_MouseMove(Button As Integer, Shift As Integer, _X As Single, Y As Single)If Button = 1 ThenPicture1.PSet (X, Y)StatusBar1.Panels(1) = "X=" & XStatusBar1.Panels.Item(2) = "Y=" & YEnd IfEnd Sub2．Private Sub Command1_Click()CommonDialog1.FileName = ""CommonDialog1.InitDir = "D:\"CommonDialog1.Filter = "Word Files|*.doc|文本文件|*.Txt" '设置过滤器CommonDialog1.DialogTitle = "打开文件" '设置打开对话框的标题CommonDialog1.Action = 1 '创建"打开"对话框If CommonDialog1.FileName = "" Then '判断文件名是否为空MsgBox "没有选择文件", 37, "检查" '若为空，则显示信息ElseOpen CommonDialog1.FileName For Input As #1 '打开选定的文件Do While Not EOF(1)Line Input #1, a$ '读文件的一行Text1 = Text1 & a$ & vbCrLf '输出所读的内容LoopEnd IfEnd SubPrivate Sub Command2_Click()CommonDialog1.Flags = 3 '列出打印机和屏幕字体CommonDialog1.Action = 4 '打开"字体"对话框Text1.FontName = CommonDialog1.FontName '改变文本框的字体Text1.FontSize = CommonDialog1.FontSizeText1.FontBold = CommonDialog1.FontBoldText1.FontItalic = CommonDialog1.FontItalicText1.FontUnderline = CommonDialog1.FontUnderline End SubPrivate Sub Command3_Click()EndEnd Sub11章略。

VB课后习题解答第一、二章：1、简述VB6.0的主要特点答：方便、直观的可视化设计工具;面向对象程序设计方法；事件驱动的编程机制；易学易用的应用程序集成开发环境;结构化程序设计语言;完备的联机帮助功能；强大的多媒体、数据库和网络功能。

2、当正常安装VB6。

0后,误把Windows子目录删除。

当重新安装Windows后,是否需要再次安装VB6。

0？答：要重新安装的。

因为安装VB6。

0时，有些VB程序被系统自动安装在Windows目录下，所以一旦删除Windows子目录，就必须重新安装VB6。

0。

3、Visual Basic 6。

0分为学习版、专业版和企业版，如何知道所安装的是哪个版本？答：在VB6.0的启动界面上,能显示对应的版本.4、叙述建立一个完整应用程序的过程答：首先建立用户界面的控件对象（简称控件);然后对控件属性进行设置；再对控件事件过程及编程;保存应用程序；程序调试和运行。

5、Visual Basic 6。

0有多种类型窗口，若要在设计时看到代码窗口，应怎样操作？答：选择“视图"—>“代码窗口”命令或单击“工程资源管理器”窗口中的“查看代码"按钮。

6、当建立好一个简单的应用程序后，假定该工程仅有一个窗体模块。

试问该工程涉及多少个要保存的文件？若要保存该工程的所有文件,应先保存什么文件？再保存什么文件？若不这样做，系统会出现什么信息？答：涉及两个文件要保存.先保存窗体文件（.frm）,再保存工程文件（.vbp）。

若先保存工程文件，系统也会先弹出“文件另存为”对话框，要求先保存窗体文件。

7、保存文件时，若不改变目录名，则系统默认的目录是什么?答：系统默认的目录是VB988、安装Visual Basic 6。

0后，帮助系统是否也已安装？答:没有。

VB6.0的帮助系统在两张光盘上，即MSDN Library，其中还包含了VC、VFP等其他语言的帮助系统。

9、如何使用Visual Basic 6.0的帮助系统？答：最方便的方法是选定要帮助的内容，然后按F1功能键，这时系统打开MSDN Library查阅器,直接显示与选定内容有关的帮助信息。