vb教材课后作业答案

习题1一.单项选择题（要求在四个备选答案中选出一个正确答案）1．Visual Basic是一种（ D ）的可视化程序设计语言。

A．面向机器 B．面向过程 C．面向问题 D．面向对象2.在VB中，下面被称为对象的是（ C ）A. 窗体B.控件C. 窗体和控件D. 窗体、控件、属性3．以下说法正确的是（ A ）A.对象的可见性可设为1或0B.标题的属性值可设为任何文本C.如果属性的值不设置，默认为空D.属性窗口中属性只能按字母顺序排列4．为了在属性窗口中设置窗体的属性，预先要执行的操作是（ A ）。

A．单击窗体上没有控件对象的地方 B．单击任一个控件对象C．双击任一个控件对象 D．双击窗体上没有控件对象的地方5．要设置窗体上各控件的属性，可在（ C ）中进行。

A．窗体布局窗口 B．工程资源管理器窗口C．属性窗口 D．窗体窗口6．在代码窗口中，当从对象框中选定了某一对象后，在（ A ）中会列出适用该对象的事件。

A．过程框 B．属性窗口 C．工具箱 D．工具栏7．创建一个简单的应用程序，该程序只有一个窗体，则该工程至少有（ B ）个文件需要保存。

A．1 B．2 C．3 D．48．程序运行中用鼠标双击当前窗体时，会触发窗体的（ C ）事件。

A．Load B．Unload C．DblClick D．KeyPress9．在Visual Basic 6.0集成开发环境中，可以（ D ）。

A．编辑、调试、运行程序，但不能生成可执行程序B．编辑、运行程序，生成可执行程序，但不能调试程序C．编辑、调试程序，生成可执行程序，但不能运行程序D．编辑、调试、运行程序，并能生成可执行程序10．以下叙述正确的是（ C ）。

A．用属性窗口只能设置窗体的属性B．用属性窗口只能设置工具箱中标准控件的属性C．用属性窗口可以设置窗体和控件的属性D．用属性窗口可以设置任何对象的属性11.在VB程序运行期间，若改变窗体大小，则自动触发的窗体事件是（ B ）A. ClickB. ResizeC. LoadD. Unload12.以下为窗体文件扩展名的是（ C ）A. .basB. .clsC. .frmD. .ers13.能确定控件尺寸的是（ A ）A.Width和HeightB.Top和LeftC. Width或HeightD.Top或Left二. 多项选择题（要求在五个备选答案中选出多个正确答案）1．下列论述中，正确的是（ ACDE ）。

VB程序设计教程课后参考答案习题一一、填空题1．对象、事件驱动2．窗体、控件3．属性4．属性窗口、编程设置5．事件过程6．对象名、下划线、事件名7．Form_click8．Print form1.print “我的VB”9．主窗口、属性、工具箱、代码、窗体、工程资源管理10．菜单、快捷键二、选择题1．C 2. A 3. B 4. B 5. D 6. B C 7. A 三、简答题（略）习题二一、选择题1. D2. C3. C4. B5. C6. B7. C8. B 9. A 10. B 11. B 12. C 13. D 14. B15. A 16. A 17. A 18. A 19. B 20. C 21. A22. B 23. B 24. A 25. C 26. A 27. B 28. B29. C 30. B 31. D 32. D 33. C二、填空题1．Controlbox、Maxbutton、Minbutton2．Multiline TRUE3．******4．单文档界面（SDI）多文档界面（MDI）5．窗体显示6．Passwordchar7．_change()三、编程题（略）习题三一、基础知识题（略）二、填空题1．整型、长整型、单精度、双精度2．(x mod 10)*10+x\103．Sin(3.14*15/180)+sqr(x+exp(3))/abs(x-y)-log(3*x)4．(a+b)/(1/(c+5)-c*d/2)5．X mod 5=0 or x mod 9=06．False7．-4、3、－3、3、－4、48．CDEF10．TRUE11．变量、属性12．‘_ :13．(略)14．“”＃15．Public、通用/模块、Dim、static、private16．+ 、&、+17．Now() 、time()、日期18．Inputbox()、字符串、val()19．Msgbox()三、选择题1．B 2. C 3. A 4. B D此题有误 5. B 6. A7. D 8. B 9. B 10. C 11. D 12. B13. C 14. B 15. A 16. C 17.A 18. D19. A 20. D 21. A 22. C 23. C 24. D25. A 26. D 27. D 28. B 29. C 30. B31. C 32. B 33. C D此题有误34. C 35. A36. D 37. C 38. A 39. B 40. A 41. C42. C 43. D 44. C 45. D 46. A四、编程题1.Option ExplicitPrivate Sub Command1_Click()Dim a%, b%, c%, delta%Dim x1#, x2#, x#a = Val(InputBox("please input data to a:", "info", 1))b = Val(InputBox("please input data to b:", "info", 1))c = Val(InputBox("please input data to c:", "info", 1))If a = 0 And b <> 0 Thenx = -c / bPrint "所构成的方程是：" & b & "x" & "+" & c & "=0"Print "该一元一次方程的根是：", xEnd IfIf a = 0 And b = 0 ThenPrint "很抱歉，不能构成合法的方程！"End IfIf a <> 0 Thendelta = b * b - 4 * a * cIf delta >= 0 Thenx1 = (-b + Sqr(delta)) / (2 * a)x2 = (-b - Sqr(delta)) / (2 * a)Print "所构成的方程是：" & a & "x2" & "+" & b & "x" & "+" & c & "=0"Print "该方程的根是："Print "第一个根是：", x1Print "第二个根是：", x2Else2Print "该方程有两个虚根："Print "第一个虚根是：" & -b / (2 * a) & "+" & Sqr(Abs(delta)) / (2 * a) & "i"Print "第二个虚根是：" & -b / (2 * a) & "－" & Sqr(Abs(delta)) / (2 * a) & "i" End IfEnd IfEnd Sub2.Option ExplicitPrivate Sub Command1_Click()Dim i%, s%s = 0For i = 1 To 99 Step 2s = s + iNextPrint sEnd Sub3.Option ExplicitPrivate Sub Command1_Click()Dim i%Dim s#s = 0For i = 1 To 100s = s + 1 / i * (-1) ^ (i + 1)NextPrint sEnd Sub4.Option ExplicitPrivate Sub Command1_Click()Dim i%, n%Dim t#, s#n = Val(InputBox("please input data:", "info", 5))s = 0t = 1For i = 1 To nt = t * is = s + tNextPrint sEnd Sub5.Option ExplicitPrivate Sub Command1_Click()Dim a%, b%, c%Dim p#, s#a = Val(InputBox("please input data to a:", "info", 3))b = Val(InputBox("please input data to b:", "info", 4))c = Val(InputBox("please input data to c:", "info", 5))If (a + b > c And Abs(a - b) < c) Or (a + c > b And Abs(a - c) < b) Or ((b + c) > a And Abs(b - c) < a) Thenp = (a + b + c) / 2s = Sqr(p * (p - a) * (p - b) * (p - c))Print "三角形的面积是：" & sElsePrint "很抱歉，不能构成合法的△三角形！"End IfEnd Sub6.Option ExplicitPrivate Sub Command1_Click()Dim ji%, tu%For ji = 1 To 27For tu = 1 To 27If ji * 2 + tu * 4 = 78 And ji + tu = 27 ThenPrint "鸡的个数是：" & jiPrint "兔的个数是：" & tuEnd IfNextNextEnd Sub7.Option ExplicitPrivate Sub Command1_Click()Dim i%Dim s#, t#s = 10t = 10For i = 1 To 7t = t * 0.4s = s + t * 2NextEnd Sub8.Option ExplicitPrivate Sub Command1_Click()Dim i%, fs%, max%, min%, s%Dim ave#fs = Val(InputBox("please input score:", "info", 90))s = fsmax = fsmin = fsFor i = 2 To 7fs = Val(InputBox("please input score:", "info", 90))If max < fs Thenmax = fsEnd IfIf min > fs Thenmin = fsEnd Ifs = s + fsNextave = (s - max - min) / 5Print "该运动员的平均成绩是：" & aveEnd Sub9. ‘同学们，这道题方法很多，主要考察你对选择结构的理解，我给出其中一种方法。

※<习题一>1．计算机硬件系统和软件系统各由哪些部分组成？分别说明其功能与作用。

2．信息在计算机内如何表示，存储容量如何计算？3．Windows系统中有哪些常见的操作对象？4．操作系统的功能、作用与地位如何？5．Windows系统中文件是如何进行管理的？6．如何获取和运行应用程序？5※<习题二>1．叙述建立一个完整的VB应用程序的过程。

2．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。

问该工程涉及到多少文件要保存？3．解释什么是类、对象、对象属性、事件与事件过程、方法。

4．VB开发环境中有哪些窗体，各有哪些用途？5．使用VB开发环境牵涉到哪几种模式，并描述各自的作用？6．VB中的错误种类有哪些？如何调试程序？如何使用帮助系统？5※<习题三>习题（一）判断题：1、VB的Byte类型数据的数值范围，在-255到255之间。

(F)2、VB的Double类型数据，可以精确表示其数值范围内的所有实数。

(F)3、Variant是一种特殊的数据类型，该类型变量可以存储除了定长字符串数据及自定义类型外的所有系统定义类型的数据。

Variant类型变量还具有Empty、Error和Null等特殊值。

（T）4、函数MsgBox的前三个参数，分别为图标样式、按钮样式以及默认按钮。

（F）5、在自定义函数过程中，函数名必须被赋值。

（F）6、在Open语句中用Append方式所打开的文件若不存在，则创建该文件。

（T）7、在Open语句中用Input方式所打开的文件必须已经存在，否则会运行错误。

（T）8、“A=B=C”是一个合法的Visual Basic语句。

（T）9、在窗体或模块文件中声明为Private的过程，只能被本窗体或模块中的过程所调用。

（T）10、静态变量是局部变量，当过程再次被执行时，静态变量的初值是上一次过程调用后的值。

（T）11、在VB中，用Dim定义数组时数组元素也自动赋初值0。

二、教科书中的练习题参考答案习题三，参考答案一、VB定义了哪几种数据类型？各自有什么特点？变量有哪几种类型？常量有哪几种类型？答：在Visual Basic中，数据类型分为三大类：基本数据类型、用户自定义数据类型、枚举类型。

基本数据类型是系统定义的一些类型，用户自定义数据类型和枚举类型时用户根据实际情况可以自己定义的类型，并且类型中可以混合基本数据类型。

变量有整型、长整型、单精度浮点型、双精度浮点型、货币型、字节型、字符串型、布尔型、日期型、对象型、变体型数据，还可以使用户自定义类型和枚举类型。

常量有整型、长整型、单精度浮点型、双精度浮点型、货币型、字符串型、布尔型、日期型。

二、说明下列哪些是Visual Basic合法的直接常量，并分别指出它们的类型。

100.0 %100 123D3 0100 “ASDF””1234.5” #2006/6/1# 100# &H123 True答：合法的直接常量有：100.0、123D3、0100、“ASDF”、”1234.5”、 #2006/6/1#、100#、&H123、True、其中整型数据有：0100、&H123单精度数据有： 100.0双精度数据有：123D3、100#字符型数据有：“ASDF”、”1234.5”日期型数据有：#2006/6/1#布尔型数据有：True三、下列数据哪些是变量，哪些是常量？是什么类型的常量？Name ”name” False ff ”11/16/99”答：变量有：Name、ff、常量有：”name”、 False、”11/16/99”其中”name”、”11/16/99”是字符串型，False是布尔型四、下列符号中，哪些可以是Visual Basic的合法变量名？Sum33 x45_0 450_x Single XYZ False 答：上面合法的变量名有：Sum33、x45_0、XYZ。

五、把下列数学表达式写成Visual Basic表达式：（1）5||zyx++（2）6)1(xy+（3）xy yx310+答：（1）Abs(x+y)+z^5 (2) (1+x*y)^6 （3）（10*x+Sqr(3*y)）/(x*y)六、计算下列函数的值：(1) Int(-3.14159) (2) Sqr(Sqr(81))(3) Int(Abs(99-100)/2) (4) Sgn(7*3+2-10)答：(1) -4 (2) 3 (3) 0 (4) 1七、写出下列表达式的值：(1) (2^4+8*3 Mod 5)/2 (2) 4^3\7+8-(6>3 or 5<34 and 8<>7)答：(1) 10 (2) 18八、设X=8，Y=4，Z=5，求下列表达式的值(实数保留三位小数)：(1) X+4*Z (2) X^3/7答：(1) 28 (2) 73.143习题四，参考答案4.1 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。

<大学程序设计基础-Visual Basic>教材课后习题答案第1章一、选择题1 2 3 4 5 6 7B D BC B B D第2章一、选择题1 2 3 4 5 6 7 8 9 10B C B C B C A A A A11 12 13 14A B A A二、填空题1.rem或’ _ ：2.“” # #3.5x2-3x-2sinA/34.3214565.300三、操作题1、程序段：Private Sub Command1_Click()Dim x As Integer, y As IntegerDim s As Long, c As Longx = Text1.Texty = Text2.Texts = x * yc = (x + y) * 2Label3.Caption = "长方形的面积为" + Str(s)Label4.Caption = "长方形的周长为" + Str(c)End Sub3、程序段：Private Sub Command1_Click()Text1.Text = "第一"End SubPrivate Sub Command2_Click()Text1.Text = "第二"End Sub4、程序代码：Private Sub Text1_Change()Text1.MaxLength = 10End Sub5、程序代码：Private Sub Text1_Click()Text1.SelStart = 0Text1.SelLength = Len(Text1.Text)End Sub第3章一、选择题1 2 3 4 5 6 7D A D B A D B二、填空题1. False2.B^2-4*a*c else三、操作题1．从键盘输入三个值，判断它们能否构成三角形的三个边。

如果能构成一个三角形，则计算三角形的面积。

A．1Private Sub Command1_Click()Label3 = Text1End SubA．2Private Sub Form_Load()Timer1.Interval = 0End SubPrivate Sub Command1_Click() '自动Timer1.Interval = 200End SubPrivate Sub Command2_Click() '手动Timer1.Interval = 0Call MyMoveEnd SubPrivate Sub Timer1_Timer()Call MyMoveEnd SubSub MyMove()Label1.Move Label1.Left - 50If Label1.Left < 0 Then Label1.Left = Form1.Width End SubA．3Private Sub Form_Click()Text1 = Val(Text1) + 1End SubPrivate Sub Form_Load()Text1 = 0End SubA．4Private Sub Form_Click()Caption = "单击窗体，改变图片"Picture = LoadPicture(App.Path + "\n_015.bmp")Print "欢迎使用VB"End SubPrivate Sub Form_DblClick()ClsCaption = "双击窗体，卸去图片"Picture = LoadPicture("") 'End SubPrivate Sub Form_Load()Caption = "装入窗体"Picture = LoadPicture(App.Path + "\n_016.bmp")Print "装入图"End SubPrivate Sub Form_Resize() ' 该事件的作用窗体始终与图一样大'Caption = "窗体大小不变"'Form1.Width = 260 * 16 ' 260 是Tongji-2.bmp 图的宽度，象素单位'Form1.Height = 260 * 16 + 200 ' 260 是图的高度，象素单位，200 是窗体的标题栏高度End SubA．5Sub Command1_Click()Text1.FontName = "隶书"Text1.FontSize = 25End SubSub Command2_Click()Text2.Text = Text1.SelTextText2.FontName = Text1.FontNameText2.FontSize = Text1.FontSizeEnd SubB．1Private Sub Command1_Click()Text2 = Format(5 / 9 * (Val(Text1) - 32), "0.00")End SubPrivate Sub Command2_Click()Text1 = Format(9 / 5 * Val(Text2) + 32, "0.00")End Sub或Private Sub Command1_Click()Dim f!, c! ' 声明两个变量f = Val(Text1)c = 5 / 9 * (f - 32)Text2 = Format(c, "0.00") ' 保留两位小数End SubPrivate Sub Command2_Click()Dim ff!, cc! ' 声明两个变量cc = Val(Text2)ff = 9 / 5 * cc + 32Text1 = Format(ff, "0.00") ' 保留两位小数End SubB．2Label2 = Format(Val(Text1) * Val(Text1) * 3.14, "0.00") End SubPrivate Sub Command2_Click()Label3 = Format(Val(Text1) * 3.14 * 2, "0.00")End SubPrivate Sub Text1_LostFocus()If Not IsNumeric(Text1.Text) ThenMsgBox "输入有非数字字符，请重新输入", , "警告"Text1.Text = ""Text1.SetFocusEnd IfEnd Sub或Private Sub Command1_Click()Label2 = Format(Val(Text1) * Val(Text1) * 3.14, "0.00") End SubPrivate Sub Command2_Click()Label3 = Format(Val(Text1) * 3.14 * 2, "0.00")End SubPrivate Sub Text1_KeyPress(KeyAscii As Integer)If KeyAscii = 13 ThenIf Not IsNumeric(Text1.Text) ThenText1.Text = ""End IfEnd IfEnd SubB．3Private Sub Command1_Click()n = Int(Log(2) / Log(1.008) + 1)Label1 = n & "年后人数超过26 亿"End SubB．4Private Sub Command1_Click()Dim x, dx, cdx = Text1.Textdx = UCase(x)cd = Len(x)Print "大写字母为:"; dxPrint "字符串长度为:"; cdEnd SubB．5Text1 = Int(Rnd * 900 + 100)End SubPrivate Sub Command2_Click()Dim x%, x1%, x2%, x3%x = Val(Text1)x1 = x Mod 10 ' 分离出的个位数x2 = (x Mod 100) \ 10 ' 分离出的十位数x3 = x \ 100 ' 分离出的百位数Label1 = x1 * 100 + x2 * 10 + x3End SubB．6Private Sub Form_Click()Label1 = Left(Text1, 11)Label2 = Mid(Text1, 12, 6)Label3 = Right(Text1, 5)End SubB．7Private Sub Command1_Click()PrintFor i = 1 To 5Print Tab(15 - i * 2); String(2 * i - 1, "★"); Spc(18 - 4 * (i - 1)); String(2 * i - 1, "★")Next iEnd SubPrivate Sub Command2_Click()ClsEnd Sub进一步要求：Private Sub Command1_Click()PrintFor i = 1 To 5Print Tab(15 - i * 2); String(2 * i - 1, "★"); String(10 - (2 * i - 1), "☆"); String(2 * i - 1, "★") Next iEnd SubPrivate Sub Command2_Click()ClsEnd SubB．8Private Sub Form_Click()x = Val(InputBox("输入一正实数", "计算", 0))pf = Format(x * x, "0.000")pfg = Format(Sqr(x), "0.000")lf = Format(x * x * x, "0.000")lfg = Format(x ^ (1 / 3), "0.000")Print "平方为:"; pf; Space(5); "平方根为:"; pfg; Space(5); "立方为:"; lf; Space(5); "立方根为:"; lfgEnd SubC．1Private Sub Form_Click()Dim x!, y!x = Val(InputBox("输入x 的值"))If x < 1000 Theny = xElseIf x < 2000 Theny = 0.9 * xElseIf x < 3000 Theny = 0.8 * xElsey = 0.7 * xEnd IfPrint yEnd SubC．2Private Sub Form_Click()Dim x!, y!x = Val(InputBox("输入上网时间"))If x < 10 Theny = 30ElseIf x < 50 Theny = 30 + 2.5 * (x - 10)Elsey = 30 + 2.5 * 40 + 2 * (x - 50)End IfIf y > 150 Theny = 150End IfPrint yEnd SubC．3Private Sub Command1_Click()Dim x!, y!, z!x = InputBox("input x")y = InputBox("input y")z = InputBox("input z")Print " x y z"Print " 排序前"; x; " "; y; " "; z Ifx < y Then t = x: x = y: y = tIf x < z Then t = x: x = z: z = tIf y < z Then t = y: y = z: z = tPrint " 排序后" & x & " " & y & " " & z End SubPrivate Sub Command2_Click()Dim x!, y!, z!x = InputBox("input x")y = InputBox("input y")z = InputBox("input z")Print " x y z"Print " 排序前"; x; " "; y; " "; z Ifx < y Then t = x: x = y: y = tIf y < z Thent = y: y = z: z = tIf x < y Thent = x: x = y: y = tEnd IfEnd IfPrint " 排序后" & x & " " & y & " " & z End SubC．4Dim a(3) As IntegerPrivate Sub Command1_Click()Picture1.ClsFor i = 0 To 2a(i) = Int(Rnd * 100 + 200)Picture1.Print a(i)Next iEnd SubPrivate Sub Command2_Click()Picture2.ClsDim z As IntegerFor i = 0 To 1If a(i) > a(i + 1) Thenz = a(i + 1)a(i + 1) = a(i)a(i) = zEnd IfNext iPicture2.Print a(0)Picture2.Print a(1)Picture2.Print a(2)End SubC．5Private Sub Text2_LostFocus()Dim m%, n%, y%m = Val(Text1)n = Val(Text2)If n Mod 2 <> 0 ThenMsgBox ("脚数必定为偶数")Text2 = ""Text2.SetFocusElsey = n / 2 - mIf y < 0 ThenMsgBox ("脚数必须≥2 倍的头数，请重新输入")Text2 = ""Text2.SetFocusElsex = n / 2 - mLabel2 = yLabel3 = m - yEnd IfEnd IfEnd SubC．6Private Sub Command1_Click()Dim a!, b!, c!, x1!, x2!, de!a = Text1b = Text2c = Text3de = b * b - 4 * a * ct = 2 * aIf de = 0 ThenText4 = Format(-b / t, "0.00")Text5 = Format(-b / t, "0.00")ElseIf de > 0 ThenText4 = Format((-b + Sqr(de)) / t, "0.00")Text5 = Format((-b - Sqr(de)) / t, "0.00")ElseText4 = Format(-b / t, "0.00") & "+" & Format(Sqr(Abs(de)) / t, "0.00") & "i" Text5 = Format(-b / t, "0.00") & "-" & Format(Sqr(Abs(de)) / t, "0.00") & "i" End IfEnd SubPrivate Sub Command2_Click()Text1 = ""Text2 = ""Text3 = ""Text4 = ""Text5 = ""End SubC．7Private Sub Text3_LostFocus()Select Case Trim(Text3)Case "+"Text4 = Val(Text1) + Val(Text2)Case "-"Text4 = Val(Text1) - Val(Text2)Case "*"Text4 = Val(Text1) * Val(Text2)Case "/"If Val(Text2) = 0 ThenMsgBox "分母为零，重新输入"Text2 = ""Text2.SetFocusElseText4 = Val(Text1) / Val(Text2)End IfEnd SelectEnd SubC．8Private Sub Text1_LostFocus()Select Case Trim(Text1)Case 1Text2 = "Monday"Case 2Text2 = "Tuesday"Case 3Text2 = "Wednesday"Case 4Text2 = "Thursday"Case 5Text2 = "Friday"Case 6Text2 = "Saturday"Case 7Text2 = "Sunday"Case Is > 7, Is < 1MsgBox "数字为1~7，重新输入"Text1 = ""Text1.SetFocusEnd SelectEnd Sub或者Private Sub Text1_LostFocus()If Text1 > 7 Or Text1 < 1 ThenMsgBox "数字为1~7，重新输入"Text1 = ""Text1.SetFocusElseText2 = Choose(Text1, "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday")End IfEnd SubD．1Private Sub Form_Click()For i = 1 To 9Print Tab(10 - i); String(2 * i - 1, Trim(Str(i)))Next iEnd SubD．2Private Sub Form_Click()For i = 1 To 10 Step 1Print Tab(i); String((20 - 2 * i), Chr(64 + i))Next iEnd SubD．3Private Sub Command1_Click()Dim s!, t!, i&s = 1t = 1For i = 1 To 100000t = t + is = s + 1 / tIf 1 / t < 0.00001 Then Exit ForNext iPrint "For 结构"; s, i; "项"End SubD．4Private Sub Command1_Click()Dim n&, pi#, i&n = InputBox("输入n 值")pi = 2For i = 1 To npi = pi * (2 * i) / (2 * i - 1) * (2 * i) / (2 * i + 1) Next iPrint "当n=" & n & "时，pi="; piEnd SubD．5Private Sub Form_Click()Dim s!, t!, i!, a%, n%a = Int(Rnd * 9 + 1)n = Int(Rnd * 6 + 5)t = 0: s = 0Print "a="; a, "n="; nFor i = 1 To nt = t * 10 + as = s + tPrint t;Next iPrintPrint "s="; sEnd SubD．6Private Sub Command1_Click()Dim s As Integers = 0For i = 1 To 9For j = 0 To 9For k = 0 To 9s = i * 100 + j * 10 + kIf s = i ^ 3 + j ^ 3 + k ^ 3 ThenPrint sEnd IfNext kNext jNext iEnd SubPrivate Sub Command3_Click()formd6.Hidemain.ShowEnd SubD．7Private Sub Command1_Click()Dim a!, x0!, x1!a = 27x0 = 2i = 0Doi = i + 1x1 = 2 * x0 / 3 + a / (3 * x0 * x0)If Abs(x1 - x0) < 0.00001 Then Exit Dox0 = x1LoopPrint x1, iEnd SubD．8Private Sub Command1_Click()s = 0x0 = 0.01For i = 1 To 30s = s + x0x0 = x0 * 2Next iPrint sEnd SubD．9Private Sub Command4_Click()Picture1.ClsPicture1.Print "x 课安排在"; "y 课安排在"; "z 课安排在"Picture1.Print ""For z = 5 To 6For x = 1 To z - 2For Y = x + 1 To z - 1X1 = Choose(Weekday(x), "周一", "周二", "周三", "周四", "周五", "周六", "周日")Y1 = Choose(Weekday(Y), "周一", "周二", "周三", "周四", "周五", "周六", "周日") z1 = Choose(Weekday(z), "周一", "周二", "周三", "周四", "周五", "周六", "周日") Picture1.Print " "; X1; " "; Y1; " "; z1Next YNext xNext zEnd SubE．1Private Sub Form_Click()Dim a(1 To 10) As IntegerFor i = 1 To 10a(i) = Int(Rnd * 71 + 30)Print a(i); " ";Next iMax = a(1)Min = a(1)Avg = a(1)For i = 2 To 10If a(i) > Max Then Max = a(i)If a(i) < Min Then Min = a(i)Avg = Avg + a(i)Next iAvg = Avg / 10PrintPrint "Max="; Max; " Min="; Min; " Avg="; AvgEnd SubE．2Private Sub Form_Click()Dim aa = Array(56, 78, 98, 88, 76, 78)For i = 0 To 5Print String(a(i) \ 5, "◆"); a(i)PrintNext iEnd SubE．3Dim a%(19)Private Sub Command1_Click()Picture1.ClsFor i = 0 To 19a(i) = Int(Rnd * 101)Picture1.Print a(i); " ";If (i + 1) Mod 4 = 0 Then Picture1.PrintNext iEnd SubPrivate Sub Command2_Click()Picture2.ClsDim s(5 To 9)For i = 0 To 19k = a(i) \ 10Select Case kCase 0 To 5s(5) = s(5) + 1Case 9 To 10 '90～100 分的人数s(9) = s(9) + 1Case 6 To 8 ' 存放其他三个分数段的下标有规律，根据K 获得s(k) = s(k) + 1End SelectNext iFor i = 5 To 9If s(i) <> 0 Then Picture2.Print "s("; i; ")的人数有"; Format(s(i), "0"); "个" Next iEnd SubE．4Private Sub Command1_Click()Picture1.ClsDim d%(1 To 10)For i3 = 1 To 10Randomized(i3) = Int(Rnd * 91 + 10)Next i3For i = 1 To 10For j = 1 To 10 - iIf d(j) < d(j + 1) Thent = d(j): d(j) = d(j + 1): d(j + 1) = tEnd IfNext jNext iFor i = 1 To 10: Picture1.Print d(i);If i Mod 5 = 0 Then Picture1.PrintNext iEnd SubE．5Dim a%(3, 3), b%(3, 3)Private Sub Form_Load()For i = 0 To 3For j = 0 To 3a(i, j) = Int(Rnd * 36 + 35)b(i, j) = Int(Rnd * 41 + 100)Next jNext iEnd SubPrivate Sub Command1_Click()Picture1.ClsFor i = 0 To 3For j = 0 To iPicture1.Print a(i, j); " ";Next jPicture1.PrintNext iEnd SubPrivate Sub Command2_Click()Picture2.ClsFor i = 0 To 3For j = i To 3Picture2.Print Tab(j * 6); b(i, j);Next jPicture2.PrintNext iEnd SubPrivate Sub Command3_Click()Picture3.Clssa = 0For i = 0 To 3sa = sa + a(i, i)Next isb = 0For i = 0 To 3sb = sb + b(i, 3 - i)Next iPicture3.Print "A 数组主对角线元素和为："; sa Picture3.Print "B 数组副对角线元素和为："; sb End SubE．6Private Sub Form_Click()n = InputBox("输入n 值")ReDim a6%(n + 1, n + 1)a6(0, 0) = 1: a6(1, 1) = 1: a6(1, 0) = 1For i = 2 To n + 1For j = 2 To ia6(i, j) = a6(i - 1, j - 1) + a6(i - 1, j) Picture1.Print a6(i, j); "";Next jPicture1.PrintNextEnd SubE．7Private Sub Form_Load()List1.ClearList1.AddItem "大学计算机基础"List1.AddItem "C/C++程序设计"List1.AddItem "VB 程序设计"List1.AddItem "Web 程序设计"List1.AddItem "多媒体技术与应用"List1.AddItem "数据库技术与应用"List1.AddItem "网络技术与应用"List1.AddItem "硬件技术基础"List1.AddItem "软件技术技术基础"End SubPrivate Sub List1_Click()If List2.ListCount >= 5 ThenMsgBox ("超过5 门课程，不能再选")Exit SubElseList2.AddItem List1.TextList1.RemoveItem List1.ListIndexEnd IfEnd SubE．8Sub Combo1_KeyPress(KeyAscii As Integer) Select Case KeyAsciiCase 48 To 57, 13Case ElseKeyAscii = 0End SelectIf KeyAscii = 13 ThenCombo1.AddItem Combo1.TextCombo1.Text = ""End IfEnd SubPrivate Sub Command1_Click()Dim min%, max%min = Val(Combo1.List(0))max = Val(Combo1.List(0))imin = 0imax = 0For i = 1 To Combo1.ListCount - 1If Val(Combo1.List(i)) > max Thenimax = imax = Combo1.List(i)ElseIf Val(Combo1.List(i)) < min Thenimin = imin = Combo1.List(i)End IfNext it = Combo1.List(0)Combo1.List(0) = Combo1.List(imin)Combo1.List(imin) = tt = Combo1.List(Combo1.ListCount - 1)Combo1.List(Combo1.ListCount - 1) = Combo1.List(imax) Combo1.List(imax) = tEnd SubE．9Private Sub Form_Click()For i = 0 To Screen.FontCount - 1If Asc(Left(Screen.Fonts(i), 1)) < 0 ThenPicture1.Print Screen.Fonts(i)Picture2.FontName = Screen.Fonts(i)Picture2.Print "商丘师范学院"End IfNext iEnd SubE．10Private Type clerknumber As String * 3name As String * 5salary As IntegerEnd TypeDim a(0 To 4) As clerk, n%Private Sub Command1_Click()If n >= 5 ThenMsgBox ("输入人数超过数组声明的个数")ElseWith a(n).number = Text1.name = Text2.salary = Text3Picture1.Print a(n).number, a(n).name, a(n).salary PrintEnd Withn = n + 1Text1 = ""Text2 = ""Text3 = ""End IfEnd SubPrivate Sub Command2_Click()Dim t As clerk, i%, j%For i = 0 To n - 1For j = i To n - 1If a(i).salary < a(j + 1).salary Thent = a(i): a(i) = a(j + 1): a(j + 1) = tEnd IfNext jNext iPicture1.ClsPicture1.Print "工号姓名工资" For i = 0 To n - 1Picture1.Print a(i).number, a(i).name, a(i).salaryPrintNext iEnd SubF．1Private Sub Form_Click()Dim a(1 To 10), amin, i%For i = 1 To 10a(i) = -Int(Rnd * 101 + 300)Print a(i);Next iCall s(a(), amin)PrintPrint "min="; aminEnd SubSub s(b(), min)Dim i%min = b(LBound(b))For i = LBound(b) + 1 To UBound(b)If b(i) < min Then min = b(i)Next iEnd SubF．2Private Sub Command1_Click()Dim mm%, nn%mm = Val(Text1)nn = Val(Text2)Picture1.Print mm; Tab(6); nn; Tab(12); gcd(mm, nn) End SubFunction gcd%(ByVal m%, ByVal n%)If m < n Then t = m: m = n: n = tr = m Mod nDo While (r <> 0)m = n: n = r: r = m Mod nLoopgcd = nEnd FunctionF．3Dim x!Private Sub Command1_Click()Print "调用标准函数Sin 的结果"; Sin(x)End SubPrivate Sub Command2_Click()Print "调用自定义函数MySin 的结果"; MySin(x) End SubFunction MySin(x!) As DoubleDim i%, t!, s!t = xs = ti = 1Do While Abs(t) > 0.00001t = -1 * t * x * x / ((i + 1) * (i + 2))s = s + ti = i + 2LoopMySin = sEnd FunctionPrivate Sub Command3_Click()x = InputBox("输入要计算正弦函数的角度值x") x = x * 3.14 / 180End SubF．4Private Sub Text1_KeyPress(KeyAscii As Integer) If KeyAscii = 13 ThenIf Not IsNumeric(Text1) ThenMsgBox "输入非数字串，重新输入"Text1.Text = ""Text1.SetFocusElseIf IsH(Text1) ThenPicture1.Print Text1; " ★"ElsePicture1.Print Text1End IfText1 = ""End IfEnd IfEnd SubFunction IsH(ss As String) As BooleanDim i%, Ls%IsH = Truess = Trim(ss)Ls = Len(ss)For i = 1 To Ls \ 2If Mid(ss, i, 1) <> Mid(ss, Ls + 1 - i, 1) ThenIsH = FalseExit FunctionEnd IfNext iEnd FunctionF．5Function prime(ByVal m As Integer) As Booleanprime = TrueDim i%For i = 2 To m - 1If (m Mod i) = 0 Then prime = False: Exit Function '注意冒号和exit 的范围Next iEnd FunctionPrivate Sub Command1_Click()n = 0For i = 6 To 100 Step 2For j = 3 To i \ 2If prime(j) ThenIf prime(i - j) ThenList1.AddItem i & " =" & j & " +" & i - jn = n + 1End IfEnd IfNext jNext iPicture1.Print " 6 和100 之间共有"; n; "对素数和"End SubF．6Dim a%()Private Sub Form_Click()Print "1000 以内的完数为："For i = 1 To 1000If IsWs(i) ThenPrint i; "=1";For j = 1 To UBound(a)Print "+"; a(j);Next jPrintEnd IfNext iEnd SubFunction IsWs(m) As BooleanDim s%s = 0For i = 1 To m \ 2If m Mod i = 0 ThenReDim Preserve a(j)a(j) = ij = j + 1s = s + iEnd IfNext iIf m = s Then IsWs = TrueEnd FunctionF．7Private Sub DeleStr(s1 As String, ByVal s2 As String)Dim i%ls2 = Len(s2)i = InStr(s1, s2)Do While i > 0s1 = Left(s1, i - 1) + Mid(s1, i + ls2) ' 在s1 中去除s2 子串i = InStr(s1, s2)LoopEnd SubPrivate Sub Command1_Click() ' 调用DeleStr 子过程Dim ss1 As Stringss1 = Text1Call DeleStr(ss1, Text2)Text3 = ss1End SubPrivate Sub Command2_Click()End SubF．8Private Sub Command1_Click()Dim maxw$maxlen Text1 & " ", maxwText2 = maxwEnd SubSub maxlen(s$, maxw$)Dimword$ maxw = ""Do While s <> ""i = InStr(s, " ")word = Left(s, i - 1)If Len(word) > Len(maxw) Then maxw = words = Mid(s, i + 1)LoopEnd SubG．1Private Sub Command1_Click()List1.ClearList1.AddItem Combo1If Option1 Then List1.AddItem "Pentium II"If Option2 Then List1.AddItem "Pentium I"If Option3 Then List1.AddItem "Celeron"List1.AddItem Text1If Check1 Then List1.AddItem "声卡"If Check2 Then List1.AddItem "Modem"If Check3 Then List1.AddItem "网络适配器"End SubPrivate Sub Text1_LostFocus()st = UCase(Trim(Text1))le = Len(st)If Not IsNumeric(Left(st, le - 2)) Or Right(st, 2) <> "MB" Then MsgBox "有不合法字符！"Text1 = ""Text1.SetFocusEnd IfEnd SubG．2Private Sub Check1_Click()Picture1.Font.Bold = Not Picture1.Font.BoldEnd SubPrivate Sub Check2_Click()Picture1.Font.Italic = Not Picture1.Font.BoldEnd SubPrivate Sub Command1_Click()Picture1.ClsIf Option1 ThenPicture1.Print Sin(Val(Text1))ElseIf Option2 ThenPicture1.Print Exp(Val(Text1))ElseIf Option3 ThenPicture1.Print Sqr(Val(Text1))End IfEnd SubPrivate Sub return_Click(Index As Integer)Form6.ShowUnload Form2End SubG．3Private Sub HScroll1_Change()Text1 = VScroll1.ValueText2 = HScroll1.ValueText3 = HScroll2.ValueText4 = Format(Val(Text1) * (Text3 / 100) * (Text2 / 12), "0.00") Text5 = Format(Val(Text4) + Val(Text1), "0.00")End SubPrivate Sub HScroll2_Change()Text1 = VScroll1.ValueText2 = HScroll1.ValueText3 = HScroll2.ValueText4 = Format(Val(Text1) * (Text3 / 100) * (Text2 / 12), "0.00") Text5 = Format(Val(Text4) + Val(Text1), "0.00")End SubPrivate Sub VScroll1_Change()Text1 = VScroll1.ValueText2 = HScroll1.ValueText3 = HScroll2.ValueText4 = Format(Val(Text1) * (Text3 / 100) * (Text2 / 12), "0.00") Text5 = Format(Val(Text4) + Val(Text1), "0.00")End SubG．4Dim t As SinglePrivate Sub Command1_Click()t = InputBox("输入倒计时分钟数")t = t * 60ProgressBar1.Min = 0ProgressBar1.Max = tProgressBar1.Value = tEnd SubPrivate Sub Command2_Click()Timer1.Interval = 1000ProgressBar1.Visible = TrueEnd SubPrivate Sub Timer1_Timer()Dim m%, s%t = t - 1ProgressBar1.Value = tm = t \ 60s = t Mod 60Label1 = m & "分" & s & "秒"If t = 0 ThenMsgBox " 时间到！"Timer1.Interval = 0ProgressBar1.Visible = FalseEnd IfEnd SubG．5Private Sub Command1_Click()CommonDialog1.ShowColorLabel1.ForeColor = CommonDialog1.ColorEnd SubPrivate Sub Command2_Click()CommonDialog1.ShowOpeni = Shell("C:\WINDOWS\NOTEPAD.exe " + CommonDialog1.FileName, vbNormalFocus) End SubG．6rivate Sub bold_Click()Text1.FontBold = Not Text1.FontBoldbold.Checked = Not bold.CheckedEnd SubPrivate Sub del_Click()Text1 = ""End SubPrivate Sub end_Click()EndEnd SubPrivate Sub font12_Click()Text1.FontSize = 12End SubPrivate Sub font16_Click()Text1.FontSize = 16End SubPrivate Sub Form_Load()bold.Checked = Falseitalic.Checked = FalseEnd SubPrivate Sub italic_Click()Text1.FontItalic = Not Text1.FontItalicitalic.Checked = Not italic.CheckedEnd SubPrivate Sub Text1_MouseDown(Button As Integer, Shift As Integer, X As Single, Y As Single) If Button = 2 Then PopupMenu menu2End SubG．7Private Sub Command1_Click()CommonDialog1.ShowColorLabel1.ForeColor = CommonDialog1.ColorEnd SubPrivate Sub Command2_Click()CommonDialog1.ShowOpeni = Shell("C:\WINDOWS\NOTEPAD.exe " + CommonDialog1.FileName, vbNormalFocus) End SubPrivate Sub return_Click(Index As Integer)Form6.ShowUnload Form5End SubG．8G．9Private Sub 结束_Click()EndEnd SubPrivate Sub 删除最大值_Click()max = List1.List(0)For i = 1 To List1.ListCount - 1If max < List1.List(i) Then max = List1.List(i): j = i Next iList1.RemoveItem jEnd SubPrivate Sub 删除最小值_Click()min = List1.List(0)For i = 1 To List1.ListCount - 1If min > List1.List(i) Then min = List1.List(i): j = i Next iList1.RemoveItem jEnd SubPrivate Sub 随机产生_Click()RandomizeFor i = 0 To 9List1.List(i) = Int(Rnd * 30 + 70)Next iEnd SubPrivate Sub 添加数据_Click()List1.AddItem Int(Rnd * 30 + 70)End SubPrivate Sub 统计_Click()Dim max%, min%, ave!, m%, n%max = List1.List(0)min = List1.List(0)ave = List1.List(0)m = 0n = 0For i = 1 To List1.ListCount - 1If max < List1.List(i) Then max = List1.List(i): m = i If min > List1.List(i) Then min = List1.List(i): n = i ave = ave + List1.List(i)Next iForm2.Text1 = List1.List(n)Form2.Text2 = List1.List(m)Form2.Text3 = Format(ave / List1.ListCount, "0.00") Form2.ShowEnd SubG．10Private Sub experimentG2_Click()Form2.ShowEnd SubPrivate Sub experimentG3_Click()Form3.ShowEnd SubPrivate Sub experimentG4_Click()Form4.ShowEnd SubPrivate Sub experimentG5_Click()Form5.ShowEnd SubPrivate Sub font_12_Click()Text1.FontSize = 12End SubPrivate Sub font_16_Click()Text1.FontSize = 16End SubPrivate Sub rnd10_Click()RandomizeFor i = 0 To 9List1.List(i) = Int(Rnd * 30 + 70)Next iEnd SubPrivate Sub stat_Click()Dim max%, min%, ave!, m%, n%max = List1.List(0)min = List1.List(0)ave = List1.List(0)m = 0n = 0For i = 1 To List1.ListCount - 1If max < List1.List(i) Then max = List1.List(i): m = i If min > List1.List(i) Then min = List1.List(i): n = i ave = ave + List1.List(i)Next istat2.Text1 = List1.List(n)stat2.Text2 = List1.List(m)stat2.Text3 = Format(ave / List1.ListCount, "0.00")stat2.ShowEnd SubPrivate Sub Text1_MouseDown(Button As Integer, Shift As Integer, X As Single, Y As Single) If Button = 2 Then PopupMenu caidan2, vbPopupMenuCenterAlignEnd SubPrivate Sub xie_Click()Text1.Font.Italic = Not Text1.Font.BoldEnd SubH．1Private Sub Command1_Click()Open "c:\score" For Output As #1Print #1, "051023", "王海涛", 66Print #1, "052498", "周文英", 88Print #1, "050992", "陈建东", 77Open "c:\score1" For Output As #2Write #2, "051023", "王海涛", 66Write #2, "052498", "周文英", 88Write #2, "050992", "陈建东", 77Closei1 = Shell("NOTEPAD.exe" + " c:\score", vbNormalNoFocus)i2 = Shell("NOTEPAD.exe" + " c:\score1", vbNormalNoFocus)End SubPrivate Sub Command2_Click()Dim no As String, name As String, s As IntegerOpen "c:\score" For Input As #1Do While Not EOF(1)Line Input #1, linedataList1.AddItem linedataLoopOpen "c:\score1" For Input As #2Do While Not EOF(2)Input #2, no, name, sList2.AddItem no & name & sLoopCloseEnd SubH．2Private Sub Command1_Click()Dim fib%(0 To 9), i%Open "c:\fb.dat" For Output As #1For i = 0 To 9If i = 0 Or i = 1 Thenfib(i) = iElsefib(i) = fib(i - 1) + fib(i - 2)End IfPrint #1, """Fib(" & i & ")""," & fib(i)Next iClose #1i = Shell("NOTEPAD.exe" + " c:\fb.dat", vbNormalNoFocus) End SubPrivate Sub Command2_Click()Dim st$, n%, sum%Open "c:\fb.dat" For Input As #1Do While Not EOF(1)Input #1, st, nsum = sum + nList1.AddItem st & "=" & nLoopClose #1List1.AddItem " 合计：" & sumList1.AddItem "平均：" & sum / 10End SubH．3H．4Private Type studtypeno As String * 4name As String * 6mark As SingleEnd TypeDim student As studtype, stud(1 To 5) As studtype, t As studtypePrivate Sub Command1_Click()Open "d:\score.dat" For Random As #1 Len = Len(student) With student.no = "0001".name = "星期一"。

VB程序设计课后习题答案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Window子目录删除。

当重新安装Window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Window目录下，所以一旦删除Window子目录，就必须重新安装VB6.0。

3、ViualBaic6.0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、ViualBaic6.0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ViualBaic6.0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MSDNLibrary，其中还包含了VC、VFP等其他语言的帮助系统。

9、如何使用ViualBaic6.0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MSDNLibrary查阅器，直接显示与选定内容有关的帮助信息。

VB习题答案（1-3章）习题一一、选择题1．C 2.C 3.A 4.C 5.C 6.C 7.B二、填空题1.学习版、专业版、企业版2.窗体界面3.Alt+F4三、简答题1．简述Visual Basic语言的特点。

Visual Basic是Windows操作平台下的可视化编程语言，它继承和发展了BASIC语言的基本功能，具有简单易学、功能强大等特点。

Visual Basic提供了可视化设计工具，以图形用户界面（GUI）为PC机用户提供了一个直观的工作环境。

支持面向对象的程序设计（OOP），采用事件驱动方式，提供对象的链接与嵌入（OLE）和访问数据库等功能。

2. Visual Basic 6.0的集成开发环境由哪些部分组成，各部分的主要功能是什么？1. 标题栏：用来显示打开的工程名称和系统的工作状态。

2. 菜单栏：菜单栏中包括“文件”、“编辑”、“视图”、“工程”、“格式”、“调试”、“运行”、“查询”、“图表”、“工具”、“外接程序”、“窗口”和“帮助”共有13个菜单项。

这是一组下拉式菜单，提供了设计、编辑、编译和调试应用程序所需要的绝大部分功能和命令。

3. 工具栏： Visual Basic 6.0提供了“编辑”、“标准”、“窗体编辑器”和“调试”4种工具栏。

工具栏上形象直观的排列着一些最常用的命令按钮，对应特定的常用操作命令。

4. 控件箱：控件箱提供了一组控件。

设计界面时，用户可以用鼠标双击控件箱中的控件，在窗体中画出该控件，或用鼠标单击控件箱中的控件，然后在窗体中拖动鼠标画出所需的控件。

5. 窗体设计器：窗体设计器是应用程序最终面向用户的窗口。

各种控件、图形、数据以及程序的运行结果都在窗体设计器窗体中显示出来。

6. 工程资源管理器：在工程资源管理器窗口中（图1-2），列出了应用程序的工程以及工程中的窗体和模块。

7. 属性窗口：属性窗口主要用来设置Visual Basic窗体及各控件的属性特征，属性窗口的主体部分分为左右两列，左边是控件的属性名列表，右边是控件的属性值列表。

第1章VB集成环境与VB概述一、选择题第2章常用控件与界面设计一、选择题第3章数据、表达式与简单程序设计一、选择题第4章选择分支与循环一、选择题二、填空题1．5 7 13 12 14 112. 3 1 5 3 4 13. right(a$,i)4. 45. 6-i6. 6 11 10 21 13 347. 5 14 138. Is else end select9. a*(2*i-1)*(-1)*x/(2*i+2) i+110. 0 n-111. 1 t*(-1)*x^2/((2*k-1)*(2*k)) Abs(t)>eps12. count1=count+1 count1>013. sum=0 sum+j st & k & “+”14. 9 x三、编程题1.Option ExplicitPrivate Sub Command1_Click()Dim s As String, i As Integer, ch As String * 1Dim a As Integer, b As Integer, c As Integers = Text1.TextFor i = 1 To Len(s)ch = Mid(s, i, 1)If (ch >= "0" And ch <= "9") Thena = a + 1ElseIf (ch >= "A" And ch <= "Z") Or (ch >= "a" And ch <= "z") Thenb = b + 1Elsec = c + 1End IfNextPrint "数字个数"; aPrint "字符个数"; bPrint "其他字符"; cEnd Sub2.Option ExplicitPrivate Sub Command1_Click()Dim i As Integer, n As IntegerDim a As Integer, b As Integer, c As IntegerFor i = 1 To 50n = Int(Rnd * 90 + 10)Print n;If i Mod 10 = 0 Then PrintIf n <= 40 Thena = a + 1ElseIf n <= 70 Thenb = b + 1Elsec = c + 1End IfNext iPrint "小于等于40的个数："; aPrint "大于40小于等于70的个数："; bPrint "大于70的个数："; cEnd Sub3.Option ExplicitPrivate Sub Command1_Click()Dim x As SingleDim t As Long, n As Integerx = 1t = 1n = 1Do While 1 / t >= 0.0001x = x + 1 / tn = n + 1t = t * nLoopPrint xEnd Sub4.Option ExplicitPrivate Sub Command1_Click()Dim k As Integer, sum As Integer, i As Integerk = InputBox("请输入一个正整数k", "输入框")For i = 1 To Len(CStr(k))sum = sum + Mid(k, i, 1)Next iMsgBox k & "的各位数字之和" & sumEnd Sub5.Option ExplicitPrivate Sub Command1_Click()Dim i As Integer, iSum As LongFor i = 1 To 20iSum = iSum + i ^ 4NextPrint iSumEnd Sub6.Option ExplicitPrivate Sub Command1_Click()Dim a As Integer, b As IntegerDim sum1 As Integer, sum2 As LongDim i As Integer, j As IntegerFor a = 2 To 3000sum1 = 0sum2 = 0For i = 1 To a \ 2If a Mod i = 0 Then sum1 = sum1 + i Next ib = sum1For j = 1 To b \ 2If b Mod j = 0 Then sum2 = sum2 + j Next jIf sum2 = a And a < b Then Print a, bNextEnd Sub7.Private Sub Command1_Click() '打印菱形Dim i As Integer, j As IntegerClsFor i = 1 To 6 '打印菱形上边6行Print Tab(20);Print Spc(6 - i);For j = 1 To 2 * (i - 1) + 1If j = 1 Or j = 2 * (i - 1) + 1 ThenPrint "*";ElsePrint " ";End IfNext jPrintNext iFor i = 5 To 1 Step -1 '打印下半部分Print Tab(20);Print Spc(6 - i);For j = 1 To 2 * (i - 1) + 1If j = 1 Or j = 2 * (i - 1) + 1 ThenPrint "*";ElsePrint " ";End IfNext jPrintNext iEnd Sub8.Option ExplicitPrivate Sub Command1_Click()Dim i As Integer, j As Integer, iSum As IntegerPrint "连续和为1250的正整数是："For i = 1 To 500iSum = 0For j = i To 500iSum = iSum + jIf iSum >= 1250 Then Exit ForNextIf iSum = 1250 ThenPrint i; " ～"; jEnd IfNextEnd Sub9.Option ExplicitPrivate Sub Command1_Click()Dim a As Integer, b As Integer, c As IntegerFor a = 1 To 50For b = a To 50For c = b To 50If a ^ 2 + b ^ 2 = c ^ 2 ThenPrint a, b, cEnd IfNext cNext bNext aEnd Sub第5章数组一、选择题二、填空题1.Variant2.ReDim A(N)A(1)If M < A(I) Then M = A(I)3.Int(26 * Rnd) + 65Chr(t)i + 1 To 10A(i) > A(j)4.InStr(s, ",")Right(s, Len(s) - n)s5.T – 1I + 16.k = 6 - i – jmax = m7.j = 48j = j-38.i + 1i = i + 19. 23710. 3103511.numi + 1a(j)=temp三、编程题1.Option ExplicitOption Base 1Private Sub Command1_Click()Dim a(10) As IntegerDim i As Integer, max As IntegerFor i = 1 To 10a(i) = Int(90 * Rnd) + 10Print a(i);Next iPrinti = 1max = 0Do While i <= 10If a(i) Mod 3 = 0 ThenIf a(i) > max Thenmax = a(i)End IfEnd Ifi = i + 1LoopIf max = 0 ThenPrint "无要找的数"ElsePrint max & "是最大的能被3整除的数"End IfEnd Sub2．Option ExplicitOption Base 1Private Sub Command1_Click()Dim A() As IntegerDim I As Integer, m As IntegerDim K As IntegerReDim A(10)Print "原数组:";For I = 1 To 10A(I) = IPrint A(I);Next IPrintm = InputBox("????m")K = 9 + mReDim Preserve A(K)For I = 11 To KA(I) = A(I - 10)Next IFor I = 1 To 10A(I) = A(I + m - 1)Next IPrint "平移后的数组:";For I = 1 To 10Print A(I);Next IPrintEnd Sub3．Option ExplicitOption Base 1Private Sub Command1_Click()Dim I As Integer, J As Integer, K As IntegerDim a() As Integer, n As Integer, p As Integer Dim s As String, Flag As Booleanp = 1For K = 10 To 100I = 1Do While I <= 10 And Not FlagJ = 1Do While J <= 10 And Not Flagn = I ^ 2 + J ^ 2If n = K ThenFlag = TrueReDim Preserve a(p)a(p) = Kp = p + 1s = I & Str(J) & Str(K)List1.AddItem sEnd IfJ = J + 1LoopI = I + 1LoopFlag = FalseNext KEnd Sub4．Option ExplicitPrivate Sub Command1_Click()Dim A(10) As IntegerDim B(10) As Integer, S As StringDim I As Integer, J As Integer, X As IntegerA(1) = Int(90 * Rnd) + 10S = A(1)For I = 2 To 10DoX = Int(90 * Rnd) + 10For J = 1 To I - 1If X = A(J) Then Exit ForNext JIf J = I ThenA(I) = XS = S & " " & A(I)Exit DoEnd IfLoopNext IText1.Text = SB(1) = Int(90 * Rnd) + 10S = B(1)For I = 2 To 10DoX = Int(90 * Rnd) + 10For J = 1 To I - 1If X = B(J) Then Exit ForNext JIf J = I ThenB(I) = XS = S & " " & B(I)Exit DoEnd IfLoopNext IText2.Text = SS = ""For I = 1 To 10For J = 1 To 10If A(I) = B(J) ThenS = S & " " & A(I)End IfNext JNext IIf S = "" ThenText3.Text = "没有重复"ElseText3.Text = SEnd IfEnd SubPrivate Sub Command2_Click()Text1.Text = ""Text2.Text = ""Text3.Text = ""Text1.SetFocusEnd Sub5．Option ExplicitPrivate Sub Command1_Click()Dim I As Integer, J As IntegerDim a() As Integer, K As Integer, Sum As Integer K = Val(Text1.Text)I = 1DoJ = K Mod 10ReDim Preserve a(I)a(I) = JSum = Sum + JK = K \ 10I = I + 1Loop Until K = 0Text2.Text = SumEnd Sub6．Option ExplicitPrivate Sub Command1_Click()Dim a(100, 2) As Integer, K As IntegerDim I As Integer, J As IntegerDim M As Integer, N As IntegerK = 1For I = 1 To 99For J = 1 To 99If I > J ThenM = I - JN = I + JIf Sqr(M) = Int(Sqr(M)) And Sqr(N) = Int(Sqr(N)) ThenList1.AddItem I & " " & Ja(K, 1) = Ia(K, 2) = JK = K + 1End IfEnd IfNext JNext IEnd Sub7．Option ExplicitOption Base 1Dim a(5, 5) As IntegerPrivate Sub Command1_Click() '生成数组并显示Dim i As Integer, j As IntegerPicture1.ClsPicture2.ClsPicture3.ClsRandomizeFor i = 1 To 5For j = 1 To 5a(i, j) = Int(90 * Rnd) + 10Picture1.Print a(i, j);NextPicture1.PrintNextEnd SubPrivate Sub Command2_Click()Dim i As Integer, j As Integer, max As IntegerDim b(5) As Integer, c(5) As IntegerFor i = 1 To 5max = a(i, 1)For j = 1 To 5If max < a(i, j) Thenmax = a(i, j)End Ifb(i) = maxIf max = a(i, j) Then c(i) = jNext jNext iFor i = 1 To 5Picture2.Print b(i)Picture3.Print c(i)NextEnd Sub8．Option ExplicitOption Base 1Dim a(5, 5) As IntegerPrivate Sub Command1_Click() '生成数组并显示Dim i As Integer, j As IntegerPicture1.ClsPicture2.ClsLabel3.Caption = "最大值?"Label4.Caption = "最小值?"RandomizeFor i = 1 To 5For j = 1 To 5a(i, j) = Int(90 * Rnd) + 10Picture1.Print a(i, j);NextPicture1.PrintNextEnd SubPrivate Sub Command2_Click() '交换并显示Dim i As Integer, j As Integer, t As IntegerDim maxi As Integer, mini As Integer, max As Integer, min As Integer max = 10: min = 99For i = 1 To 5For j = 1 To 5If max < a(i, j) Thenmax = a(i, j)maxi = iEnd IfIf min > a(i, j) Thenmin = a(i, j)mini = iEnd IfNextNextIf maxi <> mini ThenFor j = 1 To 5t = a(maxi, j)a(maxi, j) = a(mini, j)a(mini, j) = tNext jFor i = 1 To 5For j = 1 To 5Picture2.Print a(i, j);NextPicture2.PrintNextLabel3.Caption = "最大值" & max & "在第" & maxi & "行"Label4.Caption = "最小值" & min & "在第" & mini & "行"ElsePicture2.Print "最小值和最大值在一行"Label3.Caption = "最大值" & max & "在第" & maxi & "行"Label4.Caption = "最小值" & min & "在第" & mini & "行"End IfEnd SubPrivate Sub Form_click()Picture1.ClsPicture2.ClsLabel3.Caption = ""Label4.Caption = ""End Sub9．Option Base 1Private Sub Command1_Click()Dim i As Integer, j As Integer, n As Integer, a() As Integern = InputBox("请输入一个奇数N：")If n Mod 2 = 0 ThenMsgBox ("请重新输入奇数！")End IfReDim a(n, n)For i = 1 To nFor j = 1 To nIf i = (n + 1) / 2 And j = (n + 1) / 2 Thena(i, j) = -1ElseIf i = j Or i + j = n + 1 Thena(i, j) = 1Elsea(i, j) = 0End IfNext jFor i = 1 To nFor j = 1 To nPrint a(i, j);Next jPrintNext iEnd Sub10．Option Base 1Dim a(10) As IntegerPrivate Sub Command1_Click()Dim i As IntegerPrint "生成的数组："RandomizeFor i = 1 To 10a(i) = Int(Rnd * 90) + 10Print a(i);NextPrintEnd SubPrivate Sub Command2_Click()Dim i As Integerx = InputBox("请输入要删除的数组元素下标：") Print "删除第" & x & "个数组元素后："For i = x + 1 To 10a(i - 1) = a(i)NextFor i = 1 To 9Print a(i);NextEnd Sub11．Option ExplicitDim a(20) As Integer, i As IntegerPrivate Sub Command1_Click()RandomizeFor i = 1 To 20a(i) = Int(Rnd * 9) + 1Text1 = Text1 & a(i) & " "If i = 10 Then Text1 = Text1 & vbCrLf NextPrivate Sub Command2_Click()Dim j As Integer, k As Integer, b(20) As Boolean 'b(2)用来记录a(2)是否和前面的数相同，相同记为true，不再统计For i = 1 To 20k = 1If b(i) = False Then '如果b(i)=False，表示a(i)没有被统计过For j = i + 1 To 20If a(i) = a(j) Thenk = k + 1b(j) = TrueEnd IfNext jList1.AddItem a(i) & "出现次数:" & kEnd IfNextEnd SubPrivate Sub Command3_Click()Text1 = ""List1.ClearEnd Sub第6章过程一、选择题二、填空题1. 6 .2. 4 20 1013.第一行是 6 26 、第三行是-2 984.第一行10 6 、第二行 5 -55.第一行 6 5 、第三行8 76.第一行11 、第二行77.Fun(i)Fun=p8.第一行 4 、第二行2079.第一行29 、第二行28.710.J=kb( ) As Integerb( k-1) =b(k)i11.第一行gec 、第二行ge 、第四行 312.p1 = True And p2 = True 或p1 And p2= isp(i)Isp = Truem Mod i = 013.Convert(st)Len(s)"A" To "F"k = k + p * h14.isualVisualVisu15.s + an + 1x As Single, n As Integer 、p * (x + i) / ((2 * i - 1) * i * x)16.27617.Left(s, 1)Mid(s, i - 1, 1) = Mid(s, i, 1)n = 1c & CStr(n)18.chtempTrue19.val(mid(s,i,j))n as longprime=True20.A(2,2)的值是 6 ，A(3,1) 的值是8 ；A(4,2) 的值是 321.Option1(i)X22.1023.第一行7 6 ，第二行16 16 ，第三行，4524.第一行15 1 ，第二行35 3 ，第三行，50三、改错题1、Option Base 1Private Sub Command1_Click()Dim A() As Integer, I As Integer, J As Integer, Logic As Boolean Dim K As IntegerReDim A(1)A(1) = 50————————'K=1For I = 51 To 149K = 1 '位置错Logic = FalseCall Sub1(A, I, Logic)If Logic ThenK = K + 1ReDim A(K) 'ReDim Preserve A(K)A(K) = IEnd IfNext IFor I = 1 To UBound(A)Text1 = Text1 & Str$(A(I))If I Mod 5 = 0 Then Text1 = Text1 & vbCrLfNext IEnd SubPrivate Sub Sub1(A() As Integer, N As Integer, F As Boolean) Dim I As Integer, J As Integer, Ub As IntegerUb = UBound(A)For I = 1 To UbFor J = 2 To A(I)If A(I) Mod J = 0 And N Mod J = 0 ThenExit For 'Exit SubEnd IfNext JF = TrueNext IEnd Sub2、Option ExplicitOption Base 1Private Sub Command1_Click()Dim I As Integer, Flg As Boolean, S1 As Integer, S2 As IntegerDim J As Integer, K As Integer, P() As IntegerReDim P(1)P(1) = 2For I = 3 To 150 Step 2For J = 2 To Sqr(I)If I Mod J = 0 Then Exit ForNext JIf J > Sqr(I) ThenReDim Preserve P(UBound(P) + 1)P(UBound(P) + 1) = I 'P(UBound(P)) = IEnd IfNext IFor I = 80 To 125If fun(I, P, S1, S2) Then 'If fun(I, P, S1, S2)Text1 = Text1 & Str$(I) & "=" & Str(S1) & "*" & Str$(S2) & vbCrLf End IfNext IEnd SubPrivate Function fun(N As Integer, P() As Integer, S1 As Integer, S2 As Integer) As Boolean Dim I As Integer, J As IntegerFor I = 1 To UBound(P)For J = 1 To UBound(P) - 1If N = P(I) * P(J) ThenS1 = P(I)S2 = P(J)'fun = TrueExit Functionfun = True '位置错End IfNext JNext IEnd Function3、Option ExplicitPrivate Sub Get_Chess(Chess() As Integer, idx As Integer, Over As Integer) 'ByVal idx As IntegerDim Ub As Integer, Counter As Integer, K As IntegerUb = UBound(Chess)Chess(idx) = 0Counter = 1K = 0 '位置错Do Until Counter = Ub - 1Do Until K = 2idx = idx + 1If idx > Ub Then idx = 1K = K + Chess(idx)LoopChess(idx) = 0Counter = Counter + 1LoopFor Over = 1 To UbIf Chess(Over) <> 0 Then Exit ForNext OverEnd SubPrivate Sub Command1_Click()Dim Chess(32) As Integer, I As Integer, J As IntegerDim K As Integer, idx As IntegerFor I = 1 To 32For J = 1 To 32Chess(J) = 1Next JCall Get_Chess(Chess, I, K)If K = 23 ThenText1 = "从第" & Str$(I) & "号棋子开始取"Exit ForEnd IfNext IEnd Sub4、Option ExplicitPrivate Sub Form_Click()Dim S As String, Flg As BooleanDoS = InputBox("输入一个自然数")If S = "" Or Not IsNumeric(S) ThenMsgBox "请重新输入", 48 + vbOKOnlyElseExit DoEnd IfLoopjudge(S, Flg) ' Call judge(S, Flg) 或judge S, Flg If Flg ThenPrint S; "是回文数"ElsePrint S; "不是回文数"End IfEnd SubPrivate Sub judge(Ch As String, F As Boolean)Dim L As Integer, I As IntegerL = Len(Ch)F = True ' F = FalseFor I = 1 To LIf Mid$(Ch, I, 1) <> Mid$(Ch, L + 1 - I, 1) Then Exit Sub Next IF = False ' F = TrueEnd Sub四、编程题1.Private Function Prime(a As Integer) As BooleanDim i As IntegerFor i = 2 To Sqr(a)If a Mod i = 0 Then Exit FunctionNext iPrime = TrueEnd Function'方法一Private Sub Command1_Click()Dim m As Integer, i As Integerm = InputBox("请输入一个大于2 的偶数")If m <= 2 Or m Mod 2 <> 0 Then MsgBox "请输入大于2的偶数": Exit Sub If Prime(2) And Prime(m - 2) ThenPrint m & "=2 +" & m - 2ElseDoi = i + 1If Prime(2 * i + 1) And Prime(m - (2 * i + 1)) ThenPrint m & "=" & 2 * i + 1 & "+" & m - (2 * i + 1)Exit DoEnd IfLoop While 2 * i + 1 < m - (2 * i + 1)End If'方法二Private Sub Command2_Click()Dim m As Integer, i As Integer, p() As Integer, n As IntegerDim flg As Booleanm = InputBox("请输入大于2的偶数")If m <= 2 Or m Mod 2 <> 0 Then MsgBox "请输入大于2的偶数": Exit Sub ReDim p(1)p(1) = 2n = 1For i = 3 To m - 2 Step 2If Prime(i) Thenn = n + 1ReDim Preserve p(n)p(n) = iEnd IfNext iFor i = 1 To nFor j = 1 To nIf p(i) + p(j) = m ThenPrint m & "=" & p(i) & "+" & p(j)flg = TrueExit ForEnd IfNext jIf flg = True Then Exit ForNext iEnd Sub2．Private Function Fact(a As Integer) As LongIf a = 0 Or a = 1 ThenFact = 1ElseFact = a * Fact(a - 1)End IfEnd FunctionPrivate Sub Command1_Click()Dim n As Integer, m As Integer, result As Singlen = Val(Text1.Text)m = Val(Text2.Text)If n >= m Thenresult = Fact(n) / Fact(m) / Fact(n - m)Text3.Text = resultMsgBox "要求n>=m,请重新输入"Text1.Text = ""Text2.Text = ""Text1.SetFocusEnd IfEnd SubPrivate Sub Command2_Click()Text1.Text = ""Text2.Text = ""Text3.Text = ""Text1.SetFocusEnd Sub3．Private Function Istgs(n As Integer) As BooleanDim s As String, L As IntegerL = Len(CStr(n))s = CStr(n ^ 2)If Right(s, L) = n Then Istgs = TrueEnd FunctionPrivate Sub Command1_Click()Dim n As IntegerFor n = 10 To 300If Istgs(n) Then List1.AddItem n & "^2" & "=" & n ^ 2 Next nEnd SubPrivate Sub Command2_Click()EndEnd Sub4．Private Sub Command1_Click()Dim a(3, 4) As Integer, i As Integer, j As IntegerDim m As Integer, mj As IntegerRandomizeFor i = 1 To 3For j = 1 To 4a(i, j) = Int(900 * Rnd + 100)Print a(i, j);Next jPrintNext iFor i = 1 To 3m = 0Call max(a, i, m, mj)Print "第" & i & "行最大值为" & m & ",在第" & mj & "列"Next iEnd SubPrivate Sub max(a() As Integer, i As Integer, m As Integer, maxj As Integer) Dim j As Integerm = a(i, 1): maxj = 1For j = 2 To UBound(a, 2)If a(i, j) > m Thenm = a(i, j)maxj = jEnd IfNext jEnd SubPrivate Sub Command2_Click()EndEnd Sub5．Private Function Judge(n As Integer) As BooleanDim sum As Integersum = yz(n)If yz(sum) = 2 * n Then Judge = TrueEnd FunctionPrivate Function yz(n As Integer) As IntegerDim i As IntegerFor i = 1 To nIf n Mod i = 0 Then yz = yz + iNext iEnd FunctionPrivate Sub Command1_Click()Dim n As IntegerFor n = 1 To 500If Judge(n) Then Print nNext nEnd SubPrivate Sub Command2_Click()EndEnd Sub6．Private Sub Command1_Click()Dim n As Integer, j As Integer, flg As BooleanFor n = 2 To 30flg = FalseFor j = 2 To nIf pfs(j) And n Mod j = 0 Thenflg = TrueExit ForEnd IfNext jIf flg = False Then Print n;Next nEnd SubPrivate Function pfs(n As Integer) As BooleanIf Sqr(n) = Int(Sqr(n)) Then pfs = TrueEnd Function7．Private Function fxs(n As Long) As LongDim i As Integer, s As StringFor i = 1 To Len(CStr(n))s = Mid(CStr(n), i, 1) & sNext ifxs = sEnd Function'判断某数是否为回文数Private Function Hws(n As Long) As BooleanDim i As Integer, s As String, L As Integers = CStr(n): L = Len(s)For i = 1 To Len(s) / 2If Mid(s, i, 1) <> Mid(s, L + 1 - i, 1) Then Exit Function Next iHws = TrueEnd FunctionPrivate Sub Command1_Click()Dim x As Long, t As Longx = InputBox("请输入一个正整数：")t = xDo While Hws(t) = FalsePrint t; "+"; fxs(t); "="; t + fxs(t)t = t + fxs(t)LoopEnd Sub8．Private Function fxs(n As Long) As LongDim i As Integer, s As StringFor i = 1 To Len(CStr(n))s = Mid(CStr(n), i, 1) & sNext ifxs = sEnd FunctionPrivate Sub Command1_Click()Dim n As Long, t As LongFor n = 1 To 999t = fxs(n)If t ^ 2 = fxs(n ^ 2) And n Mod 10 <> 0 And n < t ThenList1.AddItem n & " " & tList2.AddItem n & "^2" & "=" & n ^ 2 & " " & t & "^2" & "=" & t ^ 2 End IfNext nEnd Sub9．Private Function fxs(n As Long) As LongDim i As Integer, s As StringFor i = 1 To Len(CStr(n))s = Mid(CStr(n), i, 1) & sNext ifxs = sEnd FunctionPrivate Function Judge(n As Integer) As BooleanDim i As Integer, L As Integer, a(9) As Integer, t As IntegerIf Sqr(n) = Int(Sqr(n)) ThenL = Len(CStr(n))For i = 1 To Lt = Mid(CStr(n), i, 1)a(t) = 1Next iFor i = 0 To 9Sum = Sum + a(i)Next iIf Sum = L - 1 Then Judge = TrueEnd IfEnd FunctionPrivate Sub Command1_Click()Dim a As IntegerFor a = 300 To 2000If Judge(a) Then List1.AddItem aNext aEnd Sub10．Private Function F(n As Integer) As BooleanDim i As IntegerFor i = 1 To Len(CStr(n))If i Mod 2 = 1 And Mid(CStr(n), i, 1) Mod 2 <> 1 Then Exit FunctionIf i Mod 2 = 0 And Mid(CStr(n), i, 1) Mod 2 <> 0 Then Exit Function Next iF = TrueEnd FunctionPrivate Sub Command1_Click()Dim a(8) As Integer, i As Integer, j As IntegerRandomizeDot = Int(900 * Rnd + 100)For j = 1 To iIf t = a(j) Then Exit ForNext jIf j = i + 1 Theni = i + 1a(i) = tList1.AddItem a(i)If F(a(i)) Then List2.AddItem a(i)End IfLoop Until i = 8End SubPrivate Sub Command2_Click()List1.ClearList2.ClearEnd SubPrivate Sub CmdEnd_Click()EndEnd Sub11．Private Function prime(a As Integer) As BooleanDim i As IntegerFor i = 2 To Sqr(a)If a Mod i = 0 Then Exit FunctionNext iprime = TrueEnd FunctionPrivate Function nx(n As Integer) As IntegerDim i As Integer, s As StringFor i = 1 To Len(CStr(n))s = Mid(CStr(n), i, 1) & sNext inx = Val(s)End FunctionPrivate Sub Command1_Click()Dim n As Integer, t As IntegerFor n = 100 To 900t = nx(n)If prime(n) And prime(t) And n < t ThenList1.AddItem "(" & n & "," & t & ")"End IfNext nEnd SubPrivate Sub Command2_Click()List1.ClearEnd Sub12．Option Base 1Dim a(4, 5) As IntegerPrivate Sub Command1_Click()Dim i As Integer, j As IntegerRandomizeFor i = 1 To 4For j = 1 To 5a(i, j) = Int(Rnd * 90 + 10)Picture1.Print a(i, j);Next jPicture1.PrintNext iEnd SubPrivate Sub Fp(a() As Integer, i As Integer, maxj As Integer, Flg As Boolean) Dim max As Integer, j As Integer, t As Integermax = a(i, 1): maxj = 1For j = 2 To UBound(a, 2)If a(i, j) > max Thenmax = a(i, j)maxj = jEnd IfNext jFor t = 1 To UBound(a, 1)If a(t, maxj) > max ThenFlg = FalseExit SubEnd IfNextFlg = TrueEnd SubPrivate Sub Command2_Click()Dim i As Integer, m As Integer, mj As Integer, f As BooleanFor i = 1 To 4f = Falsem = 0: mj = 0Call Fp(a, i, mj, f)If f = True ThenText1.Text = Text1.Text & "(" & i & "," & mj & "):" & a(i, mj) & vbCrLf End IfNext iEnd SubPrivate Sub Command3_Click()Picture1.ClsText1 = ""End Sub13．Private Sub Command1_Click()Dim a(30) As Integer, i As Integer, j As IntegerDim Flag As BooleanRandomizeDot = Int(900 * Rnd + 100)For j = 1 To iIf t = a(j) Then Exit ForNext jIf j = i + 1 Theni = i + 1a(i) = tText1.Text = Text1.Text + Str(a(i))If i Mod 10 = 0 Then Text1.Text = Text1.Text + vbCrLfIf IsDown(a(i)) ThenList1.AddItem a(i)Flag = TrueEnd IfEnd IfLoop Until i = 30If Flag = False Then List1.AddItem "无降序数"End SubPrivate Function IsDown(n As Integer) As BooleanDim i As Integer, S As StringS = CStr(n)For i = 1 To Len(S) - 1If Mid(S, i, 1) < Mid(S, i + 1, 1) Then Exit FunctionNext iIsDown = TrueEnd FunctionPrivate Sub Command2_Click()List1.ClearText1 = ""End Sub14．Option ExplicitPrivate Sub CmdFind_Click()Dim i As Integer, p As String, st As String, st1 As StringFor i = 100 To 999st = ""If csum(i) = zyz(i, st) Thenp = CStr(i)st1 = Left(p, 1) & "+" & Mid(p, 2, 1) & "+" & Right(p, 1)List1.AddItem i & ": " & st1 & "=" & Left(st, Len(st) - 1)End IfNext iIf List1.ListCount = 0 ThenList1.AddItem "无满足要求的数!"End IfEnd SubPrivate Function csum(m As Integer) As Integer '求各位数字之和Dim i As Integer, p As Stringp = CStr(m)For i = 1 To Len(p)csum = csum + Val(Mid(p, i, 1))Next iEnd FunctionPrivate Function zyz(ByVal m As Integer, st As String) As Integer '求所有质因子之和Dim i As Integeri = 2DoIf m Mod i = 0 Thenzyz = zyz + ist = st & i & "+"m = m \ iElsei = i + 1End IfLoop Until m = 1End Function15．Private Sub Command1_Click()Dim k As Integer, i As Integerk = InputBox("请输入要求的数列项数：")List1.AddItem "共输出前" & k & "项数列"For i = 0 To kList1.AddItem p(i)NextEnd SubPrivate Function p(n As Integer) As IntegerIf n = 0 Or n = 1 Or n = 2 Thenp = 1Elsep = p(n - 2) + p(n - 3)End IfEnd Function第7章文件一、选择题二、填空题1．顺序文件和随机文件2． EOF3． Write和Print4．返回或设置当前的工作目录5．5116．文件的写语句7．Append8．LOF9．关闭10．Pattern11．【1】For Input 【2】#2 【3】Not EOF(2) 12．【1】”END”【2】Text1.Text 或者Text113．【1】Input 【2】ch 【3】Len(mystr) 14．【1】Number 【2】s15．【1】For Append As #1 【2】"end" 【3】ct,nt 16．【1】For Input 【2】For Output As #2 【3】Not EOF(1) 【4】Line Input #1,str1 【5】Close #1,#2 【6】Kill “C:\old.txt 17．【1】Open "C:StuData．txt" For OutPut As #1 【2】Write 18．【1】"C:\data.txt" 【2】#1, a(i) 【3】k>1 And a(k-1)>b 【4】k = k -1三、综合题1．Option Base 1Dim arr(100) As IntegerPrivate Sub Command1_Click()Dim i As IntegerOpen "c:\in18.txt" For Input As #6For i = 1 To 100Input #6, arr(i)Next iClose #6End SubPrivate Sub Command2_Click()Dim i As IntegerText1.Text = ""Open "c:\out18.txt" For Output As #8For i = 1 To 100If arr(i) Mod 2 <> 0 ThenText1.Text = Text1.Text & Str(arr(i))Write #8, arr(i)End IfNext iClose #8End Sub2．Dim str As StringDim n As LongPrivate Sub Command1_Click()CommonDialog1.Filter = "文本文件(*.txt)|*.txt|All Files(*.*)|*.*"CommonDialog1.FilterIndex = 1CommonDialog1.Action = 1Open CommonDialog1.FileName For Input As #2n = LOF(2)str = Input(n, #2)Text1.Text = strClose #2End SubPrivate Sub Command2_Click()Dim i As IntegerFor i = 1 To Len(str)If Asc(Mid(str, i, 1)) <= Asc("Z") And Asc(Mid(str, i, 1)) >= Asc("A") Then Mid(str, i, 1) = LCase(Mid(str, i, 1))ElseIf Asc(Mid(str, i, 1)) <= Asc("z") And Asc(Mid(str, i, 1)) >= Asc("a") Then Mid(str, i, 1) = UCase(Mid(str, i, 1))End IfNext iText1.Text = strEnd SubPrivate Sub Command3_Click()Open "D:\out.txt" For Output As #3Print #3, strClose #3End Sub第8章程序调试一．选择题二．改错题1.a(i)=int(Rnd*19)+1 →a(i)=int(rnd*20)+1For l=1 to a(i)+1 →for i=2 to a(i)+1If l=a(i) →if l <> a(i)K=k+1 →k=k-1。

同步练习1二、选择题01——05 CADAB06——10 ACDAB11——15 CBDBB同步练习2二、选择题01——05 ABDCA06——10 CACBC11——15 DADAD16——20 BDBBB三、填空题1．可视2．LEFT、TOP、WIDTH、HEIGHT3．按字母顺序4．查看代码5．工具、编辑器6．FORM窗体、FONT7．MULTILINE8．在运行时设计是无效的9．工程、工程属性、通用、FORM1.SHOW 10．TABINDEX、0同步练习3二、选择题01——05 BCADB06——10 ADBBC11——15 DBCBA16——20 BAABB三、填空题1．整型、长整型、单精度型、双精度型2．SIN(30*3.14/180)+SQR(X+EXP(3))/ABS(X-Y)-LOG(3*X) 3．164、今天是：3-194．FALSE5．-4、3、-3、3、-4、46．CDEF7．(X MOD 10)*10+X\108．(35\20)*20=20( 35 \ 20 )* 20 = 209．X MOD 3=0 OR X MOD 5=010．27.6、8.2、8、1、100、397、TRUE、FALSE同步练习4一、选择题01——05 DBCAD06——10 CBBAB11——15 D25BAC16——20 CBACB21——25 DAABC二、填空题1．正确性、有穷性、可行性、有0个或多个输入、有1个或多个输出2．1 2 33．X>=74．X<AMIN5．10246．117．128．6、I、”*”;9．0、100、I+110．2*I、6、”*”;三、编程题1．编程求n！，n从键盘输入。

Private Sub Form_Click()Dim n%, s%, i%n = Val(InputBox("请输入n的值："))s = 1For i = 1 To ns = s * iNext iPrint n; "!="; sEnd Sub2．编程求100以内的全部质数。

第3章程序流程控制3．1 填空题1．设变量r 表示圆的半径,则计算圆的面积并赋给变量s使用的赋值语句为（ s=3.14159＊r＊r )。

2．给命令按钮Command2的Caption属性赋予字符串“退出”使用的赋值语句为（ Command2.Caption=＂退出＂）.3．为了求n的阶乘，要求用户输入n的值。

程序使用InputBox函数输入，要求对话框提示信息为“请输入一个求阶乘的数:”,标题为“求数的阶乘”,并且正确地把输入的信息转换为数值存放到变量n中，则使用的赋值语句为（ n=val（InputBox(＂请输入一个求阶乘的数：＂，＂求数的阶乘＂））。

４．如果使用MsgBox对话框显示提示信息“退出本系统?”，并显示“是（Yes)"和“否（No）”两个按钮,显示图标“？"号，指定第一个按钮为默认值以及标题为“提示信息",则调用MsgBox 函数的形式为( MsgBox（＂退出本系统？＂,4+32+0，＂提示信息＂））.５．如果使用MsgBox对话框显示提示信息“文件未找到！”,并显示“确定”按钮、图标“！"号和标题“文件查找"，则使用的MsgBox语句为（ MsgBox＂文件未找到＂,0+48+0,＂文件查找＂）。

６．要在当前窗体Form和立即窗口输出字符串“Visual BASIC 6。

0”使用的Print方法分别是（ Print “Visual BASIC 6.0”）和（ Debug。

Print “Visual BASIC 6。

0” ).７．使用Print方法时,若用逗号分隔, 则按( 标准）格式输出各表达式的值，若用分号分隔，则按( 紧凑 )格式输出各表达式的值.８．注释语句是一个( 非执行）语句，VB不对它们进行编译，对程序的执行结果没有任何影响。

９．判别变量i是否为偶数，若为偶数就把它显示出来。

使用单行结构条件语句为（ If i Mod 2=0 Then print x ）。

Visual Basic程序设计教程（李杰主编清华大学出版社 2011.2）习题答案习题2参考答案2.2 单选题1、B2、C3、A4、D5、A6、B7、D8、C9、B 10、D2.3 填空题1、事件驱动2、Cancel3、Name4、Private Sub Form1_Click()5、运行程序6、代码窗口7、Text1.Text = "我是一个学生"8、LostFocus()事件9、Label1.Caption = "请输入用户名"Label1.ForeColor = vbGreen10、(Text1.Text)*22.4 事件练习题1、①该事件的对象是标签Label1，单击标签触发该事件。

②缺省Label1对象的代码是针对窗体，其余有Label1对象的代码是针对标签的。

③Label1.AutoSize = True语句使标签的大小自动随文字的多少而改变。

2、程序运行后，单击命令按钮，在Text1文本框显示"知音海外版"，在Text2文本框显示"计算机世界"。

3、单击“显示文本框”命令按钮触发的事件过程Private Sub Command1_Click()Text1.Visible = TrueText1.ForeColor = vbRedText1.Text = "VB程序设计"End Sub单击“隐藏文本框”命令按钮触发的事件过程Private Sub Command2_Click()Text1.Visible = FalseEnd Sub习题3参考答案3.2 单选题1 C2 C3 D4 B5 B6 B7 B8 C9 D3.3填空题1.REM(或‘) _ ：2 双引号（“”）#3 $ %4 UCASE()5.(log(1+d*d)-exp(2))^(5/2) [ 还有一种理解方式：(log(1+d*d)-e*e)^(5/2)]6. &O113 &H4B习题4参考答案4.2 单选题BDCBD4.3 填空题1.MsgBox("是否删除？ ", vbOkCancel + vbQuestion, "删除")2.The Length of 12345=53. 变量或表达式4. 15. loop4.4 程序设计题1.Private Sub Command1_Click()If Text1.Text = "asdf" ThenMsgBox "密码正确！"ElseMsgBox "密码错误", vbRetryCancel, "错误"End IfEnd Sub2. < 题目中的“连续产生n*n个字母”应该改为“连续产生n个字母”> Private Sub Command1_Click()Dim n%, y%, i%n = Val(Text1.Text)If n > 10 Or n<=0 ThenMsgBox "数据超界！"Text1.Text=””Text1.SetFocusElsey = Int((90 - 65 + 1) * Rnd) + 65For i = 1 To nPrint Chr(y + i)Next iEnd IfEnd Sub3．Private Sub Form_Click()Dim a!, b!, c!, x1!, x21, d!a = Val(Text1.Text)b = Val(Text2.Text)c = Val(Text3.Text)d = b * b - 4 * a * cIf d >= 0 Thenx1 = (-b + Sqr(d)) / (2 * a)X2 = (-b - Sqr(d)) / (2 * a)Print x1; X2ElsePrint "没有实根"End IfEnd Sub4.Private Sub Form_Click()Dim i%, j%, s%, n%,q%n = InputBox("enter n:")q = 0For i = 1 To ns = 0For j = 1 To is = s + jNext jq = q + sNext iPrint qEnd Sub5.Private Sub Form_Click()Dim i%, j%, n%, k%n = 0For i = 1 To 3For j = 1 To 3For k = 1 To 3Print i & j & k,n = n + 1If n Mod 5 = 0 Then PrintNext kNext jNext iPrintPrint "n="; nEnd Sub6.Private Sub Form_Click()Dim i%, j%, n%, k%For i = 1 To 9For j = 0 To 9For k = 0 To 9n = i * 100 + j * 10 + kIf n = i ^ 3 + j ^ 3 + k ^ 3 Then Print n,Next kNext jNext iEnd Sub习题5参考答案5.2 单选题1 A2 B3 C4 C5 D6 D7 A8 C9 D 10 A 11 A 12 B 5.3 填空题1．False2．Caption3．0 ListCount-14．Print List1.List(3)5．Combo1.ReMoveItem 36．LargeChange7．Timer8．5009．Shape10．Borderstyle5.4 程序设计题1．Dim op1, op2, result As SingleDim operator As IntegerPrivate Sub Command1_Click(Index As Integer)If Index >= 0 And Index <= 10 ThenIf txt1.Text = "" Thentxt1.Text = CStr(Index + 1)Elsetxt1.Text = txt1.Text + CStr(Index + 1) End IfEnd IfIf Index >= 12 And Index <= 15 Thenop1 = CDbl(txt1.Text)operator = Indextxt1.Text = ""End IfIf Index = 11 Thenop2 = CDbl(txt1.Text)Select Case operatorCase 12result = op1 + op2Case 13result = op1 - op2Case 14result = op1 * op2Case 15result = op1 / op2End Selecttxt1.Text = CStr(result)End IfEnd SubPrivate Sub Command2_Click()op1 = 0op2 = 0result = 0txt1.Text = ""End SubPrivate Sub Command3_Click()EndEnd Sub2．Private Sub chkBold_Click()If chkBold.Value = vbChecked ThenTxt1.FontBold = TrueElseTxt1.FontBold = FalseEnd IfEnd SubPrivate Sub chkUnderline_Click()If chkUnderline.Value = vbChecked Then Txt1.FontUnderline = TrueElseTxt1.FontUnderline = FalseEnd IfEnd SubPrivate Sub Opt18_Click()Txt1.FontSize = 18End SubPrivate Sub Opt22_Click()Txt1.FontSize = 22End Sub3．Private Sub Form_Load()List1.AddItem "上海"List1.AddItem "北京"List1.AddItem "天津"List1.AddItem "广东"List1.AddItem "辽宁"List1.AddItem "陕西"List1.AddItem "河南"List1.AddItem "深圳"List1.AddItem "四川"List1.AddItem "重庆"End SubPrivate Sub List1_DblClick()For i = 0 To 9If List1.ListIndex = i ThenList2.AddItem List1.List(i)List1.RemoveItem iEnd IfNext iEnd Sub4．Private Sub Command1_Click（）Timer1.Enabled=TrueTimer1.Tag=Text1.Text*60Frame1.Caption=“现在开始倒计时”End SubPrivate Sub Timer1_ Timer（）Timer1.Tag=Timer1.Tag-1If m<0 ThenTimer1.Enabler=FalseMsgBox“预定的时间到了！”，0，“倒计时”Frame1.Caption=“请输入计时的分钟数：”Text1.Text=0Exit SubEnd Ifn1=Format（m Mod 60,“00”）n2=Format（m \ 60）Mod 60,“00：”）n3=Format（m \ 3600）,“00：”）Text1.Text=n3&n2&n1End Sub习题6参考答案6.1单选题1.C2.C3.B4.B5.B6.D7.B8.B9.A 10.A6.2 填空题1.Option Base 12.变体类型3.preserve (注意：教材上面写成perserve, 教材错误)4.Variant变体类型5.96.相同，索引号7.1）.通过复制粘贴的方式创建控件数组2）.在设计时候添加多个同类型的类型控件，然后通过“属性”窗口将这些控件的名称改为相同，并把Index属性设为不同的下标值。

第5章数组与记录5．1 填空题1．若要定义一个包含10个字符串元素，且下界为1的一维数组s，则数组说明语句为（ Dim s(1 To 10) As String ）。

2．若要定义一个元素为整型数据的二维数组a，且第一维的下标从0到5，第二维下标从-3到6，则数组说明语句为（ Dim a(0 To 5,-3 To 6) As Integer ）。

3．如果数组元素的下标值为实数，则VB系统会按（四舍五入原则）进行处理。

4．数组元素个数可以改变的数组称为（可调数组）；数组元素可以存放不同类型数据的数组称为（可变类型数组）。

5．数组刷新语句用于（清除指定数组内容）。

若被刷新的数组是数值数组，则把所有元素置（０）；若被刷新的数组为字符串数组，则把所有元素置（空字符串）。

6．设有表格控件grd1，若设置grd1的第2行第5列的单元格为当前活动单元格，使用的语句为（grd1. Row =2 ）和（grd1.Col=5 ）。

7．要使表格控件grd1的当前活动单元格显示字符串“姓名”，使用的语句是（grd1.Text=“姓名”）。

8．建立一个具有10行10列的表格控件grd2，需使用的语句为（grd2. Row =10 ）和（grd2.Col=10 ）。

9．在程序的运行中，对表格控件grd1的某些列的数据按降序并且区分大小写排序，使用的语句是（grd1.Sort=8 ）。

10．控件数组是由一组类型和（名字）相同的控件组成，共享（同一个事件过程）。

11．控件数组中的每一个控件都有惟一的下标，下标值由（ Index ）属性指定。

12．建立控件数组有两种方法：（在设计阶段通过相同Name属性值来建立）和（在程序代码中使用Load方法）。

5．2 选择题1．下列一维数组说明语句错误的是（ d ）。

a) Dim b(100) AS Double b) Dim b(-5 To 0) AS Bytec) Dim b(-10 To –20) AS Integer d) Dim b(5 To 5) AS String2．若有数组说明语句为：Dim a(-3 To 8)，则数组a包含元素的个数是（ d ）。

习题一、单项选择题1、设x=4,y=6,则以下不能在窗体上显示出“A=10”的语句就是( )A、PrintA=x+yB、Print"A=";x+yC、Print"A="+Str(x+y)D、Print"A="&x+y2、假定有如下的命令按钮(名称为Command1)事件过程:PrivateSubCommand1_Click()x=InputBox("输入:","输入整数")MsgBox"输入的数据就是:”,,”输入数据:"+xEndSub程序运行后,单击命令按钮,如果从键盘上输入整数10,则以下叙述中错误的就是( )A、x的值就是数值10B、输入对话框的标题就是“输入整数”C、信息框的标题就是“输入数据:10”D、信息框中显示的就是“输入的数据就是:”3、有如下程序a=3;b=4PRINT b＜aEND运行后,输出的结果就是( )A、4＞3B、-1C、0D、显示出错信息4、在窗体(名称为Form1)上画一个名称为Text1的文本框与一个名称为Command1的命令按钮,然后编写一个事件过程。

程序运行以后,如果在文本框中输入一个字符,则把命令按钮的标题设置为“计算机等级考试”。

以下能实现上述操作的事件过程就是( )A、Private Sub Text1_Change()B、Private Sub Command1_Click()Command1、Caption=”计算机等级考试”Caption=”计算机等级考试”End Sub End SubC、Private Sub Form1_Click()D、Private Sub Command1_Click()Text1、Caption=”计算机等级考试”Text1、Text=”计算机等级考试”End Sub End Sub5、假定有如下的窗体事件过程:Private Sub Form_Click()a$ = "Microsoft Visual Basic"b$ = Right(a$, 5)c = Mid(a$, 1, 9)MsgBox a$, 34, b$, c$, 5End Sub程序运行后单击窗体,则在弹出的信息框中的标题栏中显示的信息就是( )A、Microsoft VisualB、MicrosoftC、BasicD、56、窗体上放置了三个文本框,若在Text1中输入456,在Text2中输入78,在程序中执行了语句Text3=Text1+Text2后,则在Text3中显示( )A、434B、45678C、溢出D、语法错误7、执行下面的程序,单击窗体,则在窗体上显示的就是( )。

习题一答案在教材上找。

习题二1.对象指现实世界中的实体。

每个对象有自己的特征(属性)、行为(方法)和发生在该对象上的活动(事件)。

类是对同一种对象的集合与抽象。

类包含所创建对象的属性数据，以及对这些数据进行操作的方法。

封装和隐藏是类的重要特性，将数据结构和对数据的操作封装在一起，类的内部实现细节对用户来说是透明的。

VB工具箱中的可视图标是VB系统设计好的标准控件类。

通过将控件类实例化，得到真正的控件对象。

在窗体上画一个控件，就将类转换为对象，创建了一个控件对象。

VB中常用的对象是控件。

此外，VB还提供了系统对象。

窗体是个特例，它既是类也是对象。

当向一个工程添加一个新窗体时，实质就由窗体类创建了一个窗体对象。

对象的三要素：属性、事件和方法。

属性：存放对象的数据(决定对象外观及功能)对象属性的设置方法：在设计阶段，利用属性窗口直接设置属性值；程序运行时，通过语句[对象名.]属性名=属性值。

若属性只能在设计阶段设置，在程序运行阶段不可改变，称为只读属性。

事件：发生在对象上的事情。

同一事件，对不同的对象，会引发不同的反应。

事件过程：应用程序处理事件的步骤。

应用程序设计的主要工作就是为对象编写事件过程的代码。

方法：面向对象的程序设计语言，为程序设计人员提供了一种特殊的过程和函数。

方法是面向对象的，调用时一定要指明对象。

2.窗体和控件具有的基本属性“(1) Name属性：名称所创建的对象名称,在程序中引用。

(2) Caption属性：标题该属性决定了对象上显示的内容。

(3) Height、Width、Top和Left属性决定对象的大小和位置。

(4) Enabled 属性：对象是否允许操作(5) Visible 属性：对象是否可见(6) Font 属性组：文本的外观FontName字体、FontSize大小FontBold粗体、FontItalic斜体FontStrikethru 删除线FontUnderline 下划线(7) ForeColor属性：前景颜色(8) BackColor属性：背景颜色(9) MousePointer属性：鼠标指针类型, 设置值范围0～15，由系统指定。

第4章常用控件4．1 填空题1．在图片框上放置的控件称为图片框的（）对象，而窗体是图片框的（）对象。

答案：子对象、父对象2．窗体的“名称”（Name）属性只能在（）设置。

答案：属性窗口中3．在程序中设置窗体Forml的Caption属性为“主窗体”，使用的赋值语句是（）。

答案：Forml.Caption=“主窗体”4．当窗体的Enabled属性为（）时，指定窗体响应事件。

答案：True5．窗体的Unload事件是在QueryUnload事件发生之（）发生。

答案：之后6．程序中，把当前窗体移动到屏幕左上角使用的方法为（）。

答案：Move 0,07．在窗体Form1中坐标为（1600，800）的位置上输出字符串“Visual BASIC 6.0”使用的语句为（）、（）、和（）。

答案：Form1.Currrentx=1600、Form1.Currenty=800、Form1.Print “Visual BASIC 6.0”8．若使文本框有边框，需设置BorderStyle属性的值为（）。

答案：19．在程序运行期间，用户可以用文本框显示信息。

文本框接受输入的内容的属性是（）。

答案：Text10．若使文本框内能够接受多行文本，则要设置Multiline属性的值为（）。

答案：True11．要把图形文件“c:\sample\diannt.jpg”装载到图片框Picture1上，使用的语句为（）。

答案：Picture1. Picture=LoadPicture(“c:\sample\diannt.jpg”)12．若使图片框自动调整大小以适应装入的图形，则要设置Autosize属性的值为（）。

答案：True13．除了在程序使用LoadPicture函数装载图形外，还可以在设计阶段通过修改（）属性装载图形。

答案：Picture14．若程序中要把一些文本内容输出到图片框PictureBox，应使用（）方法。

答案：Print15．当单选按钮OptionButton的Value属性为（）时，表示该单选按钮处于未选中状态。

vb课后习题参考答案第一章习题参考答案一、填空题1、对象事件驱动2、编译运行模式解释运行模式二、简答题1、简述VB的特点。

答：①可视化的程序设计方法②面向对象的程序设计思想③事件驱动的编程机制④结构化的程序设计语言⑤高度的可扩充性⑥强大的数据库访问能力⑦支持动态数据交换⑧支持对象链接与嵌入2、简述VB的安装过程。

答：①向光驱中放入VB安装光盘；②计算机将运行自动安装程序，若没有，执行VB目录下的Setup.exe；③根据提示逐一回答问题，并点击“下一步”；④点击“完成”；2、如何启动VB。

答：三种方法：①单击“开始”按钮，选择“程序”菜单下的“Microsoft Visual Basic 6.0 中文版”菜单项并单击；②双击桌面上的VB6.0快捷图标；③在“开始”菜单的运行对话框中输入命令来启动VB；第二章习题参考答案一、选择题：1-10、DCACD BCBBC11-20、BADCA BBAAB21-29、AACBB CDDC二、填空题1．窗体、控件2．属性值3．属性窗口设置、代码窗口设置4．事件过程5．对象名、下划线、事件名6．Form_Click第三章习题参考答案一、选择题1、B2、C3、A4、B5、A6、C7、C二、填空题1、11字符型、字节型、整型、长整型、单精度型、双精度型、货币型、逻辑型、日期型、对象型、变体型。

String、Byte、Integer、Long、Single、Double、Currency、Boolean、Date、Object、Variant2、双引号(英文)、#3、ASCII、1、25、&、+、+6、Now()、Time、日期型三、解答题1、(3)2、(1 )3、（1）常量（关键字）（2）字符型常量（3）逻辑型常量（4）变量（5）字符串常量（6）变量（7）字符串常量（8）变量（9）日期型常量（题目应是#11/16/1999#）（10）数值型常量（单精度）4、315、（1）(1+y/x)/(1-y/x) （2）x^3+3*x*y/(2-y)（3）sqr(abs(a*b-c^3)) （4）sqr(s*(s-a)*(s-b)*(s-c))6、7、（1）13 （2）17（3）#1999-11-12# （4）zxy123ABC8、（1）19 （2）8.16666666666667（3）5．25 （4）29、（1）-4 （2）2 . 82842712474619 （3）-3 （4）49 （5）”hello” （6）He7）16 （8）“-459.65” （9）510、（4）11、（2）12、（4）第四章习题参考答案一、选择题：1—7: DAABBCD二、填空题1．500.00%2．将字号扩大为原来的二倍3． B三、编程题（略）1．文本框、标签和命令按钮的名称分别为text1、label1、command1Private Sub Command1_Click()Label1.caption=text1.textCommand1.caption=text1.textEnd Sub2．单价、数量、折扣和应付款对应的文本框的名称分别为：text1、text2、text3和text4，计算和清除命令按钮的名称分别为：command1和command2。

vb课后练习答案习题解答（2）第2章基本数据类型与表达式2．1 填空题1．程序设计语言中（）是语言的最基本符号，（）是具有语法意义的最小语法单位。

答案：字符、单词2．（）用于标记用户自定义的常量、类型、变量、控件、过程、函数等名字。

答案：标识符3．整型数据占（）字节的内存空间。

长整型数据占（）个字节的内存空间。

单精度浮点型数据占（）个字节的内存空间。

双精度浮点型数据占（）个字节的内存空间。

日期型数据占（）个字节的内存空间。

答案：2、4、4、8、84．100% 表示100为（）型数据；100！表示100为（）型数据；100＠表示100为( )型数据.答案：整、单精度浮点、货币5．符号常量在某一过程中说明，则该符号常量只能在（）内有效。

答案：该过程内6．若一个整型变量说明了之后没有给它赋值，则它的值为（）。

答案：07．在VB中可以把类型说明符放在变量名的（）来说明变量的类型。

答案：末尾8．为了使VB的编译程序自动检查变量声明，遇到未经说明的标识符发出错误警告信息，在程序中要加上（）语句。

答案：Option Explicit9．对含有多种运算的表达式，各种运算之间的顺序为（）→（）→（）→（）。

答案：函数运算、算术运算、关系运算、逻辑运算10．把1234.567的小数部份四舍五入转换为整数，可使用函数（）。

答案：Cint(1234.567)11．将x四舍五入到百位（例如，若x=23874.52应舍入成23900），可使用表达式（）。

答案：Int(x / 100 + 0.5) * 10012．将x从十位截断（例如，x=23874.52应截成23800）可使用表达式（）。

答案：Fix(x / 100) * 100或者Int(x/100)*100或者Cint(x\100-0.5)*10013．设X为数值变量，求X的常用对数可使用的表达式是（）。

答案：Log(X)/Log(10)14．要从字符串“Visual BASIC 6.0”中截取子字符串“BASIC”可使用函数（）。