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自测1程序代码Private Sub Command1_Click() = + 3End SubPrivate Sub Command2_Click() = TrueEnd SubPrivate Sub Command3_Click() = TrueEnd SubPrivate Sub Command4_Click() = 10= False= FalseEnd Sub初始窗口：单机放大之后窗口：单机下划线之后窗口：单击加粗之后窗口：单击还原之后窗口：自测2程序代码Private Sub Command1_Click() Label1 = "visual basic"Text1 = "程序设计题"End SubPrivate Sub Command2_Click() Text1 = "visual basic"Label1 = "程序设计题"End Sub初始窗口：单击显示之后窗口：单击交换之后的窗口：自测题3Private Sub Command1_Click() = *End SubPrivate Sub Command2_Click() = + 30= + 20= 1End Sub初始窗口：单击缩小两倍之后的窗口：单击向右下角移动之后的窗口：自测题4程序代码Private Sub Command1_Click() = "VB学习"Print "简单的VB程序设计" End SubPrivate Sub Command2_Click() ClsPrivate Sub Command3_Click() EndEnd SubPrivate Sub Command3_Click() EndEnd Sub初始化窗口：单击显示之后的窗口：单击清除之后的窗口：单击退出之后的窗口：程序代码Private Sub Command1_Click() = ""= ""End SubPrivate Sub Command2_Click() = Val + ValEnd SubPrivate Sub Command3_Click() EndEnd Sub初始化窗口：单击运算之后窗口：单击清除之后的窗口：单击退出之后的窗口：自测练习1Private Sub Command1_Click() Dim a$a == Left(a, 2)End SubPrivate Sub Command2_Click() a == Right(a, 2)End SubPrivate Sub Command3_Click() = &End Sub初始窗口界面输入字符串截取前两个字符截取后两个字符字符串连接自测练习2Private Sub Form_Click()Dim a%, b%, c%, d%, e%, f%, g%, h%, i%, j%, k%, l% a = 7349e = a Mod 10 '个位d = (a \ 10) Mod 10 '十位c = (a \ 100) Mod 10 '百位b = a \ 1000 '千位i = (e + 7) Mod 10 '个位h = (d + 7) Mod 10 '十位g = (c + 7) Mod 10 '百位f = (b + 7) Mod 10 '千位j = ii = f '交换后的个位f = j '交换后的千位k = hh = g '交换后的十位g = k '交换后的百位l = f * 1000 + g * 100 + h * 10 + i= FalsePrint "加密前的4位整数是7439"; (Chr(10)); "加密后的结果是"; lEnd Sub初始界面单击窗体运行后的界面自测练习1Private Sub Form_Click()Dim a%, b%, c%, d%, e%, f!a = Val(InputBox("输入第一个数", "输入一个数", 8))b = Val(InputBox("输入第一个数", "输入一个数", 7))c = a + bd = a - be = a * bf = a / bf = Fix(f * 100 + / 100MsgBox "x+y=" & c & Chr(10) & "x-y=" & d & Chr(10) & "x*y=" & e & Chr(10) & "x/y=" & f, , "输出的结果"End Sub自测练习2Private Sub Form_Click()Dim a%, b%, c%, d%, e%, f!a = Val(InputBox("输入第一个数的值"))b = Val(InputBox("输入第二个数的值"))c = Val(InputBox("输入第三个数的值"))d = Val(InputBox("输入第四个数的值"))e = a + b + c + df = e / 4Print "和="; ePrint "平均值="; fEnd Sub自测练习3Private Sub Form_Click()Dim h%, f%, x%, y%h = Val(InputBox("输入总头数"))f = Val(InputBox("输入总脚数"))x = (4 * h - f) / 2y = (f - 2 * h) / 2Print "笼中鸡的头数为"; x; "只"Print "笼中兔的头数为"; y; "只"End Sub自测练习1：Private Sub Form_Click()Dim a%, b%, c%a = Val(InputBox("请输入第一条边", "边长"))b = Val(InputBox("请输入第二条边", "边长"))c = Val(InputBox("请输入第三条边", "边长"))If a + b > c And a + c > b And b + c > a ThenIf a * a + b * b = c * c Or a * a + c * c = b * b Or b * b =c * c = a * a ThenPrint "直角"ElseIf a = b And b = c ThenPrint "等边三角形"ElseIf a = b Or a = c Or b = c Then Print "等腰三角形"ElsePrint "一般三角形"End IfElsePrint "不是三角形"End IfEnd Sub不是三角形运行结果：初始窗口：输入三条边：运行结果：直角三角形运行结果：等边三角形运行结果如下：等腰三角形：一般三角形自测练习2：Private Sub Form_Click()Dim a%, b!a = Val(InputBox("请输入"))If a Mod 2 = 0 And a Mod 3 = 0 And a Mod 5 = 0 Then b = Sqr(a)Print a, bElseEndEnd IfEnd Sub初始化窗口：输入一个数：运行结果：自测练习3Private Sub Command1_Click()Dim a%, b%a = ValSelect Case a > 0Case a < 20MsgBox "行李费为元/kg", , "行李费"Case a >= 20 And a < 50MsgBox "行李费为元/kg", , "行李费"Case a >= 50 And a < 100MsgBox "行李费为元/kg", , "行李费"Case Elseb = * 100 + (a - 100) * : MsgBox "行李费为" & b & "元", , "行李费"End SelectEnd Sub初始窗口：输入10：输入25：输入55：输入120：自测练习1Option Base 1Private Sub Form_Click()Dim i%, a(1 To 20) As Integer a(1) = 1: a(2) = 1Print a(1);Print a(2);For i = 3 To 10a(i) = a(i - 1) + a(i - 2) Print a(i);Next iPrintFor i = 11 To 16a(i) = a(i - 1) + a(i - 2) Print a(i);Next iPrintFor i = 17 To 20a(i) = a(i - 1) + a(i - 2) Print a(i);Next i初始界面：运行结果界面：自测练习2Option Base 1Private Sub Form_Load()= 10000= 5000End SubPrivate Sub Command1_Click()Dim i%, j%, t%, a(1 To 4, 1 To 4) As Integer For i = 1 To 4For j = 1 To 4a(i, j) = Int(Rnd * 10) + 1a(i, j);Next j"对角线的元素如下" For i = 1 To 4a(i, i);Next iFor i = 1 To 4a(i, 5 - i);Next iFor i = 1 To 4t = a(1, i)a(1, i) = a(4, i) a(4, i) = tNext iFor i = 1 To 4t = a(i, 2)a(i, 2) = a(i, 3) a(i, 3) = tNext iFor i = 1 To 4For j = 1 To 4a(i, j);Next iEnd Sub运行初始界面：运运行结果界面：自测练习1Sub itostr(a As Integer)Dim b%, c$a = ValWhile a >= 1c = Chr(a Mod 10 + 48) & ca = a \ 10Wend= c End SubPrivate Sub Command1_Click()Dim a As Integera = ValCall itostr(a)End Sub运行初始界面：运行结果界面：验证其他数字：自测练习2：Public Function area(n) As Double Dim c#, d#, e#, s#n = Valc = (1 - 0) / nWhile e <= 1d = I * c:e = (I + 1) * cs = s + (Sin(d) + Sin(e)) * c / 2 I = I + 1Wendarea = sEnd FunctionPrivate Sub Command1_Click()Dim s As DoubleCall area(n)= area(n)End Sub运行初始界面：运行结果：自测练习3Private Sub Form_click()n = Val(InputBox("请输入n的值")) x = Val(InputBox("请输入x的值")) Print "e的值="; es(n, x)End SubPrivate Function es(n, x)Dim a As Double, b As Double, c As Double, i As Integer a = 1: b = 1: c = 1For i = 1 To na = x * a:b = b * i:c = c + a / bNext ies = cEnd Function运行初始界面：输入数据：运行结果：自测练习4：For i = 1 To 4For j = i + 1 To 5If a(i) > a(j) Thent = a(i): a(i) = a(j): a(j) = tEnd IfNext jNext iFor i = 1 To 5Print a(i); " ";Next iFor i = 1 To 5If Y < a(i) Thent = a(i): a(i) = Y: Y = tEnd IfNext iFor i = 1 To 6a(6) = tNext iEnd FunctionPrivate Sub Command1_Click()Dim i#, a%(1 To 6), Y%Y = Val(InputBox("输入y的值", "输入数据")) Insertfun a%(), YPrintFor i = 1 To 6Print a(i); " ";Next iEnd Sub运行初始界面：插入数据：运行结果：蓝志鹏资源1102 实验8自测练习1：Private Sub Command1_Click() If = 1 Then= "报名参加羽毛球比赛"End IfIf = 1 Then= "报名参加乒乓球比赛"End IfIf = 1 And = 1 Then= "报名参加羽毛球，乒乓球比赛" End IfEnd Sub运行初始界面：运行结果：自测练习4：Private Sub Form_Load()= 2= 24= "黑体"= &HFF&End SubPrivate Sub Option1_Click()= "我是学生"End SubPrivate Sub Option2_Click() = "我是教师"End SubPrivate Sub Option3_Click() = "我是工人"End SubPrivate Sub Option4_Click() = "我是农民"End Sub运行初始界面：运行结果：自测练习6：Private Sub Command1_Click() For i = 0 To - 1If (i) = ThenExit ForEnd IfNext iIf i > - 1 ThenEnd IfEnd SubPrivate Sub Command2_Click() If <> -1 ThenFor i = 0 To - 1If (i) = TheniEnd IfExit ForNext iEnd IfEnd SubPrivate Sub Command3_Click()End Sub运行初始界面:自测练习7：Private Sub Command1_Click() = 1= TrueEnd SubPrivate Sub Form_Load()= 20= 20= 20= 20End SubPrivate Sub Timer1_Timer()= + 10lbltem =If VSbwd >= 100 Then lbltishi = "水开了"= FalseEnd IfEnd Sub运行初始界面：运行结果：自测练习1：Private Sub myhelp_Click()End SubPrivate Sub mymenu1_Click() = "百货大楼"End SubPrivate Sub mymenu2_Click() = "利客隆"End SubPrivate Sub mymenu3_Click() = "稻香村"End Sub运行初始界面：运行结果界面：自测练习2：Private Sub Dis_Click()= "菜单程序设计"= 20= "黑体"End SubPrivate Sub Hid_Click()= FalseEnd Sub运行初始界面：运行结果界面：自测练习3：Private Sub vbhelp_Click()r = MsgBox("帮助", , "程序设计题") End SubPrivate Sub Vbnew_Click()r = MsgBox("新建", , "程序设计题") End SubPrivate Sub vbopen_Click()r = MsgBox("打开", , "程序设计题") End SubPrivate Sub vbsave_Click()r = MsgBox("存盘", , "程序设计题") End Sub运行初始界面：运行结果：自测练习4：Private Sub Command1_Click() = 1End Sub运行初始界面：运行结果：自测练习1：Private Sub Command1_Click() Dim a As String, n%, i%, j% Open "E:\" For Input As #1 Input #1, an = Len(a)j = 0For i = 1 To nIf Mid(a, i, 1) = "%" Then j = j + 1 Next iClose #1Open "E:\" For Output As #1Print #1, jClose #1End Sub运行初始界面：运行结果：自测练习3：Private Sub Form_Click()Dim x$Open "e:\" For Input As #1Do While Not EOF(1)Line Input #1, x$LoopClose #1Open "e:\" For Append As #1Print #1, x$Close #1End Sub运行初始界面：自测练习4Private Sub Form_load()Print " 26个英文字母"PrintPrint " a b c d e f g h i j k l m n o p q r s t u v w x y z"Print "字母个数分别为"End SubPrivate Sub Form_Click()Open "E:\" For Output As #1文本$ = InputBox("请输入文本")n = UCase(文本$)Print #1, nClose #1Dim a%()Open "E:\" For Output As #1 For i = 1 To Len(n)ReDim Preserve a(1 To 26)j = Asc(Mid(n, i, 1)) - 64a(j) = a(j) + 1Next iClose #1For j = LBound(a) To UBound(a) Print a(j);Next jEnd Sub。
第二部分综合练习理论练习一一单选1-5 CDCCB 6-10 ABDCD 11-15 CCBBD 16-20 DBCBA 二多选1 ABCE2 CE3 BCE4 ADE5 ABCD6 ABCDE7 ACD8 ABCDE9 ABC 10 ABCDE三判断1-5×√×√√6-10 √×√√√四填空、1 x=int(Rnd*101) End If avg=s/82 i=1 to 10 Right(str(i),1) 或Right(str(i mod 10))3 m*n/GCD(m,n) GCD(b, a mod b)4 Exit For i & “是素数”Next i五阅读程序1-4 DDCB六程序设计1Option Base 1Private Sub Form_click()Dim a(10)Clscreatedata a()sort a()For i = 1 To 10Print a(i);Next iEnd SubSub createdata(a())For i = 1 To 10a(i) = Int(Rnd * 101)Next iEnd SubSub sort(a())For i = 1 To 9For j = 1 To 10 - iIf a(j) > a(j + 1) Thent = a(j): a(j) = a(j + 1): a(j + 1) = tEnd IfNext jNext iEnd Sub2Private Type ksno As String * 8Bscj As IntegerSjcj As IntegerEnd TypeDim student As ksPrivate Sub Form_Load()Open "c:\ksxx.dat" For Random As #1 Len = Len(student) End SubPrivate Sub cmdadd_Click()student.no = Text1.Textstudent.Bscj = V al(Text2.Text)student.Sjcj = V al(Text3.Text)lastrecord = LOF(1) / Len(student) + 1Put #1, lastrecord, studentText1.Text = ""Text2.Text = ""Text3.Text = ""End SubPrivate Sub cmdquit_Click()Close #1EndEnd Sub理论练习二一单选1-5 CABCD 6-10 ABCCD 11-15 BBBAB 16-20 DBAAC 二多选1 CD2 AD3 CE4 BC5 AD6 BCDE7 CDE8 ABCDE9 ABD 10 ACDE三判断1-5××××√6-10 √√√××四填空1 n-1 或者Sqr(n) 0 True2 x y3 1 to 10 2*i-14 Button=2 start=True -(x,y)五阅读程序1-5 DBDAB六程序设计1Private Sub Form_click()japan = 47528china = 22257n = 0Do While china <= japanchina = china * 1.098japan = japan * 1.028n = n + 1LoopPrint n & "年之后，中国GDP将超过日本"End Sub2' VB6中的Split函数，其功能是将一字符串用分界符分割为一字符串数组。
实验任务6参考答案课程名称：程序设计基础VB实验名称——实验六Visual Basic程序设计基础(2)一、实验目的：1．掌握顺序结构的程序设计方法2．掌握常用的接收和输出数据的方法3．进一步掌握常量、变量、运算符、表达式和常用函数的使用二、实验内容（包括实验要求(题目)、实验步骤、程序清单、运行情况）：实验1注意：类型符省略为%——Integer，&——Long，!——Single，#——Double，@——Currency，结果转换方向整型→长整型→单精度型→双精度型→货币型第（1）组总结◆加法和减法的情况相同◆通常相同类型的操作数进行运算,结果同操作数本身,但是除法/比较特殊,除单精度数据除外(Single),相同数据进行除运算结果是Double◆不同类型的操作数进行运算,结果通常按占用内存字节数多的方向转换(规则:转换方向整型→长整型→单精度型→双精度型→货币型);也有特例:单精度与长整型运算结果为Double,单精度与货币型相乘运算结果为Double, 双精度与货币型相乘运算结果为Double,单精度与整型相除运算结果为Single第（2）组Dim a As Integer, b As Single, c As Singlea < 2 = 3 b^2 - 4*a*c > 0 "ABC">"ACB" "ABC" = "abc" 200 + True"123ab" & 246#1/1/2007# - #1/1/2000# "30" + 140 "123" & 456 "123" + 456实验2请先手工写出以下程序段的运行结果，然后使用立即窗口或在窗体的Click事件过程中分别添加如下的程序段，运行验证，进一步理解和掌握运算符和表达式的应用。
自测1程序代码Private Sub Command1_Click() Label1.FontSize = Label1.FontSize + 3End SubPrivate Sub Command2_Click() Label1.FontBold = TrueEnd SubPrivate Sub Command3_Click() Label1.FontUnderline = TrueEnd SubPrivate Sub Command4_Click() Label1.FontSize = 10Label1.FontBold = FalseLabel1.FontUnderline = FalseEnd Sub初始窗口：单机放大之后窗口：单机下划线之后窗口：单击加粗之后窗口：单击还原之后窗口：自测2程序代码Private Sub Command1_Click() Label1 = "visual basic"Text1 = "程序设计题"End SubPrivate Sub Command2_Click() Text1 = "visual basic"Label1 = "程序设计题"End Sub初始窗口：单击显示之后窗口：单击交换之后的窗口：自测题3Private Sub Command1_Click()Label1.FontSize = Label1.FontSize * (0.5) End SubPrivate Sub Command2_Click()Label1.Top = Label1.Top + 30Label1.Width = Label1.Width + 20Label1.Alignment = 1End Sub初始窗口：单击缩小两倍之后的窗口：单击向右下角移动之后的窗口：自测题4程序代码Private Sub Command1_Click() Form1.Caption = "VB学习" Print "简单的VB程序设计"End SubPrivate Sub Command2_Click() ClsEnd SubPrivate Sub Command3_Click() EndEnd SubPrivate Sub Command3_Click() EndEnd Sub初始化窗口：单击显示之后的窗口：单击清除之后的窗口：单击退出之后的窗口：自测题5程序代码Private Sub Command1_Click()Text1.Text = ""Text2.Text = ""End SubPrivate Sub Command2_Click()Text3.Text = Val(Text1.Text) + Val(Text2.Text) End SubPrivate Sub Command3_Click()EndEnd Sub初始化窗口：单击运算之后窗口：单击清除之后的窗口：单击退出之后的窗口：自测练习1Private Sub Command1_Click() Dim a$a = Text1.TextLabel1.Caption = Left(a, 2) End SubPrivate Sub Command2_Click() a = Text1.TextLabel2.Caption = Right(a, 2) End SubPrivate Sub Command3_Click()Text1.Text = Label1.Caption & Label2.Caption End Sub初始窗口界面输入字符串截取前两个字符截取后两个字符字符串连接自测练习2Private Sub Form_Click()Dim a%, b%, c%, d%, e%, f%, g%, h%, i%, j%, k%, l% a = 7349e = a Mod 10 '个位d = (a \ 10) Mod 10 '十位c = (a \ 100) Mod 10 '百位b = a \ 1000 '千位i = (e + 7) Mod 10 '个位h = (d + 7) Mod 10 '十位g = (c + 7) Mod 10 '百位f = (b + 7) Mod 10 '千位j = ii = f '交换后的个位f = j '交换后的千位k = hh = g '交换后的十位g = k '交换后的百位l = f * 1000 + g * 100 + h * 10 + iText1.Visible = FalsePrint "加密前的4位整数是7439"; (Chr(10)); "加密后的结果是"; lEnd Sub初始界面单击窗体运行后的界面自测练习1Private Sub Form_Click()Dim a%, b%, c%, d%, e%, f!a = Val(InputBox("输入第一个数", "输入一个数", 8))b = Val(InputBox("输入第一个数", "输入一个数", 7))c = a + bd = a - be = a * bf = a / bf = Fix(f * 100 + 0.5) / 100MsgBox "x+y=" & c & Chr(10) & "x-y=" & d & Chr(10) & "x*y=" & e & Chr(10) & "x/y=" & f, , "输出的结果"End Sub自测练习2Private Sub Form_Click()Dim a%, b%, c%, d%, e%, f!a = Val(InputBox("输入第一个数的值"))b = Val(InputBox("输入第二个数的值"))c = Val(InputBox("输入第三个数的值"))d = Val(InputBox("输入第四个数的值"))e = a + b + c + df = e / 4Print "和="; e Print "平均值="; f End Sub自测练习3Private Sub Form_Click()Dim h%, f%, x%, y%h = Val(InputBox("输入总头数")) f = Val(InputBox("输入总脚数")) x = (4 * h - f) / 2y = (f - 2 * h) / 2Print "笼中鸡的头数为"; x; "只" Print "笼中兔的头数为"; y; "只"End Sub自测练习1：Private Sub Form_Click() Dim a%, b%, c%a = Val(InputBox("请输入第一条边", "边长"))b = Val(InputBox("请输入第二条边", "边长"))c = Val(InputBox("请输入第三条边", "边长"))If a + b > c And a + c > b And b + c > a ThenIf a * a + b * b = c * c Or a * a + c * c = b * b Or b * b = c * c = a * a ThenPrint "直角"ElseIf a = b And b = c ThenPrint "等边三角形"ElseIf a = b Or a = c Or b = c ThenPrint "等腰三角形"ElsePrint "一般三角形"End IfElsePrint "不是三角形"End IfEnd Sub不是三角形运行结果：初始窗口：输入三条边：运行结果：直角三角形运行结果：等边三角形运行结果如下：等腰三角形：一般三角形自测练习2：Private Sub Form_Click()Dim a%, b!a = Val(InputBox("请输入"))If a Mod 2 = 0 And a Mod 3 = 0 And a Mod 5 = 0 Then b = Sqr(a)Print a, bElseEndEnd IfEnd Sub初始化窗口：输入一个数：运行结果：自测练习3Private Sub Command1_Click()Dim a%, b%a = Val(Text1.Text)Select Case a > 0Case a < 20MsgBox "行李费为0.2元/kg", , "行李费"Case a >= 20 And a < 50MsgBox "行李费为0.3元/kg", , "行李费"Case a >= 50 And a < 100MsgBox "行李费为0.4元/kg", , "行李费"Case Elseb = 0.2 * 100 + (a - 100) * 0.5: MsgBox "行李费为" & b & "元", , "行李费"End SelectEnd Sub初始窗口：输入10：输入25：输入55：输入120：自测练习1Option Base 1Private Sub Form_Click()Dim i%, a(1 To 20) As Integera(1) = 1: a(2) = 1Print a(1);Print a(2);For i = 3 To 10a(i) = a(i - 1) + a(i - 2) Print a(i);Next iPrintFor i = 11 To 16a(i) = a(i - 1) + a(i - 2) Print a(i);Next iPrintFor i = 17 To 20a(i) = a(i - 1) + a(i - 2) Print a(i);Next i初始界面：运行结果界面：自测练习2Option Base 1Private Sub Form_Load() Form1.Width = 10000 Form1.Height = 5000 End SubPrivate Sub Command1_Click()Dim i%, j%, t%, a(1 To 4, 1 To 4) As Integer For i = 1 To 4For j = 1 To 4a(i, j) = Int(Rnd * 10) + 1Picture1.Print a(i, j);Next jPicture1.PrintNext iPicture3.Print "对角线的元素如下"For i = 1 To 4Picture3.Print a(i, i);Next iPicture3.PrintFor i = 1 To 4Picture3.Print a(i, 5 - i);Next iFor i = 1 To 4t = a(1, i)a(1, i) = a(4, i)a(4, i) = tNext iFor i = 1 To 4t = a(i, 2)a(i, 2) = a(i, 3)a(i, 3) = tNext iFor i = 1 To 4For j = 1 To 4Picture2.Print a(i, j); Next jPicture2.PrintNext iEnd Sub运行初始界面：运运行结果界面：自测练习1Sub itostr(a As Integer) Dim b%, c$a = Val(Text1.Text)While a >= 1c = Chr(a Mod 10 + 48) & ca = a \ 10WendText2.Text = c End SubPrivate Sub Command1_Click()Dim a As Integera = Val(Text1.Text)Call itostr(a)End Sub运行初始界面：运行结果界面：验证其他数字：自测练习2：Public Function area(n) As Double Dim c#, d#, e#, s#n = Val(Text2.Text)c = (1 - 0) / nWhile e <= 1d = I * c:e = (I + 1) * cs = s + (Sin(d) + Sin(e)) * c / 2 I = I + 1Wendarea = sEnd FunctionPrivate Sub Command1_Click() Dim s As DoubleCall area(n)Text1.Text = area(n)End Sub运行初始界面：运行结果：自测练习3Private Sub Form_click()n = Val(InputBox("请输入n的值"))x = Val(InputBox("请输入x的值"))Print "e的值="; es(n, x)End SubPrivate Function es(n, x)Dim a As Double, b As Double, c As Double, i As Integer a = 1: b = 1: c = 1For i = 1 To na = x * a:b = b * i:c = c + a / bNext ies = cEnd Function运行初始界面：输入数据：运行结果：自测练习4：For i = 1 To 4For j = i + 1 To 5If a(i) > a(j) Thent = a(i): a(i) = a(j): a(j) = tEnd IfNext jNext iFor i = 1 To 5Print a(i); " ";Next iFor i = 1 To 5If Y < a(i) Thent = a(i): a(i) = Y: Y = tEnd IfNext iFor i = 1 To 6a(6) = tNext iEnd FunctionPrivate Sub Command1_Click()Dim i#, a%(1 To 6), Y%Y = Val(InputBox("输入y的值", "输入数据")) Insertfun a%(), YPrintFor i = 1 To 6Print a(i); " "; Next iEnd Sub运行初始界面：插入数据：运行结果：41011060蓝志鹏资源1102 实验8自测练习1：Private Sub Command1_Click()If Ch1.Value = 1 ThenText1.Text = "报名参加羽毛球比赛"End IfIf Ch2.Value = 1 ThenText1.Text = "报名参加乒乓球比赛"End IfIf Ch1.Value = 1 And Ch2.Value = 1 Then Text1.Text = "报名参加羽毛球，乒乓球比赛" End IfEnd Sub运行初始界面：运行结果：自测练习4：Private Sub Form_Load() Label1.Alignment = 2 Label1.FontSize = 24 Label1.FontName = "黑体" Label1.ForeColor = &HFF&End SubPrivate Sub Option1_Click() Label1.Caption = "我是学生" End SubPrivate Sub Option2_Click() Label1.Caption = "我是教师" End SubPrivate Sub Option3_Click() Label1.Caption = "我是工人" End SubPrivate Sub Option4_Click() Label1.Caption = "我是农民" End Sub运行初始界面：运行结果：。
期末自测题（A卷）文件部分的选择题要做，其它类型的题目不用做，不作考察选择题其它部分还没有时间做一、单选题（每题1分，共25分）1、211.66.160.1 是Internet上的( )。
(A) IP地址 (B)域名 (C)密码 (D)软件编号2、在以下四个www网址中，（）网址不符合www网址书写规则。
(A) (B) (C) (D) 3、下列字符中，其ASCII码值最小的一个是（）。
(A) A (B) a (C) Z (D) X4、下列软件中属于浏览器的是（）。
(A) Excel (B) Internet Explorer (C) QQ (D) Visual Basic5、电子邮件(E-mail)地址的正确形式是（）。
(A)用户名@域名 (B)用户名#域名 (C)用户名/域名 (D)用户名.域名6、下面变量名不合法的是（）。
(A) a2 (B) abcd (C) a$x (D) Cd_E7、下列表达式中，正确的Visual Basic表达式是（）。
(A) 2sin45° (B) ∏*R2 (C) x÷y×5 (D) （x+1）/（x^2+1）/28、下面逻辑表达式的值为真的是（）。
(A) "A"> "a" (B) "abc"> "bc"(C) "That"> "Thank" (D) 12> 12.19、下列过程定义语句说明不合法的是（）。
(A) Sub f1(ByRef n() As Integer) (B) Sub f1(ByRef n As Integer)(C) Sub f1(ByVal n() As Integer) (D) Sub f1(ByVal n As Integer)10、执行下面的4个打印语句，将出错的是（）。
期末自测题（A卷）文件部分的选择题要做，其它类型的题目不用做，不作考察选择题其它部分还没有时间做一、单选题（每题1分，共25分）1、211.66.160.1 是Internet上的( )。
(A) IP地址 (B)域名 (C)密码 (D)软件编号2、在以下四个www网址中，（）网址不符合www网址书写规则。
(A) (B) (C) (D) 3、下列字符中，其ASCII码值最小的一个是（）。
(A) A (B) a (C) Z (D) X4、下列软件中属于浏览器的是（）。
(A) Excel (B) Internet Explorer (C) QQ (D) Visual Basic5、电子邮件(E-mail)地址的正确形式是（）。
(A)用户名@域名 (B)用户名#域名 (C)用户名/域名 (D)用户名.域名6、下面变量名不合法的是（）。
(A) a2 (B) abcd (C) a$x (D) Cd_E7、下列表达式中，正确的Visual Basic表达式是（）。
(A) 2sin45° (B) ∏*R2 (C) x÷y×5 (D) （x+1）/（x^2+1）/28、下面逻辑表达式的值为真的是（）。
(A) "A"> "a" (B) "abc"> "bc"(C) "That"> "Thank" (D) 12> 12.19、下列过程定义语句说明不合法的是（）。
(A) Sub f1(ByRef n() As Integer) (B) Sub f1(ByRef n As Integer)(C) Sub f1(ByVal n() As Integer) (D) Sub f1(ByVal n As Integer)10、执行下面的4个打印语句，将出错的是（）。
实验一问答题：1、答：常见的有visual Basic、C++、Java、SQL。
用途特点：（参考课本4-5页）2、答：代码是一行或几行命令。
程序是针对某个任务编写的有序代码的集合。
软件是程序和文档的集合。
它们的关系是：代码 < 程序 < 软件3、答：面向对象程序设计中的每一个对象都应该能够接受数据、处理数据并将数据传达给其它对象，因此它们都可以被看作一个小型的“机器”，即对象。
它能够让人们更简单地设计并维护程序，使得程序更加便于分析、设计、理解。
4、答：参考课本第9页5、答：类——是创建对象实例的模板, 包含了创建对象的属性描述和行为特征的定义。
对象——是类的一个实例，继承了类的属性、方法。
控件——是具有图形界面的对象，它同样具有属性、方法、事件，是用来设计用户界面的重要元素。
属性——是对象的性质，用来描述和反应对象特征的参数。
事件——响应对象的动作，它发生在用户与程序交互时。
如单击控件、鼠标移动、键盘按下。
过程——指附在该对象上的程序代码，是事件的处理程序。
6、答：参考课本12页到17页。
实验二问答题：1、答通用属性有：Caption标题、Enabled可用性、Visible可见性、ForeColor前景颜色、BackColor背景颜色等。
2、答标签label是用来显示信息的，不具有输入功能。
属性有Caption、BackStyle、Alignment、BorderStyle、AutoSize。
文本框用来输入、输出数据，编辑文本。
属性有Text、 Maxlength、MultiLine、 ScrollBars、 Locked 、 PassWord 。
3、答结果为：标签里显示一个“abc”，图片框里显示3行“欢迎您”。
4、答要保存2次，分别是工程文件.vbp和窗体文件.frm。
实验一：一、选择1.D2.D3.B4.A5.B6.C7.CD8.D9.D10.编程机制是C、设计方式是B11.A12.D13.D14.C15.A二、填空1.windows2. 中断3.工具箱4.代码5.分类6.form2.show7. 出现语法错误8. 错9. 事件10. 面向对象11. 工程文件结构及各文件名12. 工程13. 设计程序代码14.双击窗体15.vb的安装文件夹16.属性17.方法18.font 19. form_load() 20.对象1.Private Sub Command1_Click()Print Sqr(8), 8 ^ (1 / 3)End Sub2.Private Sub Command1_Click()For i = 100 To 110Print Sqr(i)Next iEnd Sub3.Private Sub Form_Load()Print " 郑州大学在前进！"End Sub4. Private Sub label_click()PrintLabel.caption=”蓝天白云绿水青山”End sub实验二：一、选择1.B2.C3.B4.C5.C6.C7.B8.B9.D10.A11.C12.C13.C14.B15.A16.C17.B18.D19.C20.C二、填空1. Form_Click()2. Interval、5003..vbp .frm4.left top Height、Width twip5.picture6.load7. locked8. font Alignment9. GotFocus() LostFocus() 10. 属性窗口程序代码1.Private Sub Command1_Click()Label3 = Val(Text1) * Val(Text2)Private Sub Command2_Click()Label3 = Val(Text1) / Val(Text2)End Sub2.Private Sub Command1_Click()Picture1.Visible = TruePicture1.Picture = LoadPicture("d:\tu1.jpg") End SubPrivate Sub Command2_Click()Picture1.Visible = TruePicture1.Picture = LoadPicture("d:\tu2.jpg") End SubPrivate Sub Command3_Click()Picture1.Visible = False'也可以改为：Picture1.Picture = LoadPicture("") End Sub3.Private Sub Command1_Click()Label3 = Val(Text1) * Val(Text2) End Sub4.Private Sub Command1_Click() Text2 = Text1End SubPrivate Sub Command2_Click() Text1 = ""Text2 = ""End SubPrivate Sub Form_Load() Command1.Visible = False Command2.Visible = FalseEnd SubPrivate Sub Text1_Change() Command1.Visible = True Command2.Visible = TrueEnd Sub5.Private Sub Form_Load()Image1.Picture = LoadPicture("d:\tu3.jpg")End SubPrivate Sub Command1_Click()Timer1.Enabled = TrueEnd SubPrivate Sub Command2_Click()Timer1.Enabled = FalseEnd SubPrivate Sub Timer1_Timer()Image1.Left = Int(Rnd * (Form1.ScaleWidth - Image1.Width)) Image1.Top = Int(Rnd * (Form1.ScaleHeight - Image1.Height)) End实验三：一、选择1.A2.BC3.BC4.A5.A6.A7.BCD8.D9.B10.B 11.B二、判断题不合法的变量：3. 4. 5. 6. 8. 10. 11. 14.15. 16.三、1、abs(x+y)2. (3+x*y)^23. (-b+sqr(b^2-4*a*c))/(2*a)4.sin(30*3.14/180)+exp(2)四、1. int(rnd* 71+20) 或int(rnd* 71)+202. x<0 and y>0 or x>0 and y<0 或者x*y<03. x mod 3=0 or x mod 7=0或x/3=x\3 or x/7=x\74. x>=10 and x<205. x>="A" and x<="Z"6. left(s,3) 或mid(s,1,3)操作题：2.Private Sub Command1_Click()Dim n%n = Abs(Val(Text1))Label2 = Format(n ^ 2, "#.000") & Space(2) & Format(Sqr(n), "#.000") & Space(2) & Format(n ^ 3, "#.000") & Space(2) & Format(n ^ (1 / 3), "#.000")'上句的输出也可以用下面的print方式:' Print Format(n ^ 2, "#.000"); Spc(2); Format(Sqr(n), "#.000"); Spc(2); Format(n ^ 3, "#.000"); Spc(2); Format(n ^ (1 / 3), "#.000")End Sub3.Private Sub Command1_Click()Dim x%, y%x = Int(Rnd * 900 + 100)Print "产生的随机数："; xy = (x Mod 10) * 100 + (x \ 10 Mod 10) * 10 + x \ 100Print "反序数："; Format(y, "000")End SubPrivate Sub Command2_Click()Dim x%, y As Stringx = Int(Rnd * 900 + 100)Print "产生的随机数："; xy = Trim(Str(x))Print "反序数：" & Right(y, 1) & Mid(y, 2, 1) & Left(y, 1)End Sub4.Private Sub Command1_Click()Dim m%, n%Randomizem = Val(Text1): n = Val(Text2)x = Int(Rnd * (n - m) + m)y = Int(Rnd * (n - m) + m)z = Int(Rnd * (n - m) + m)Label3 = m & "到" & n & "之间的3个随机数为: " & x & Space(3) & y & Space(3) & zEnd Sub5.Private Sub Command1_Click()Label1.Caption = DateEnd SubPrivate Sub Command2_Click()Label2.Caption = TimeEnd SubPrivate Sub Command3_Click()Label3.Caption = WeekdayName(Weekday(Date))End Sub实验四：一、选择1.C2.D3. C4.D5.A6.D7.B8.B9.A10.C二、填空1. 48.71E-01, -4.87122. 关系、逻辑、算术3. 900，100，mid(s,2,1)4.m、1,2,3 、print m & "月是第二季度"、end select三、程序结果1. X=4 y=132. 10操作题：1.方法一：Private Sub Command1_Click()x = InputBox("请输入弧度数值", "弧度转换", 0)xx = Val(x)a = x * 180 / 3.14aa = Int(a)b = (a - aa) * 60bb = Int(b)c = (b - bb) * 60cc = Format(c, "#.000")MsgBox "弧度" & x & "转换为" & aa & "度" & bb & "分" & cc & "秒" End Sub方法二：Option ExplicitPrivate Sub Command1_Click()Dim x!, a!, aa%, b!, bb%, c!, cc$x = Val(Text1)a = x * 180 / 3.14aa = Int(a)b = (a - aa) * 60bb = Int(b)c = (b - bb) * 60cc = Format(c, "#.000")Label2 = "弧度" & Text1 & "转换为" & aa & "度" & bb & "分" & cc & "秒"End Sub2.Private Sub Command1_Click()Dim x%x = Val(Text1)If x / 400 = x \ 400 Or x Mod 4 = 0 And x Mod 100 <> 0 ThenLabel2 = Text1 & "年是闰年"ElseLabel2 = Text1 & "年不是闰年"End IfEnd Sub3.Private Sub Command1_Click()Dim x%, y%, z%x = InputBox("输入第一个数")y = InputBox("输入第二个数")z = InputBox("输入第三个数")Print "输入的数是："; x; y; zIf x > y Then t = x: x = y: y = tIf y > z Then t = y: y = z: z = tIf x > y Then t = x: x = y: y = tPrint "排序结果是："; x; y; zEnd Sub4.方法一：Private Sub Command1_Click() x = Val(InputBox("请输入上网时间:")) If x <> -1 ThenSelect Case xCase Is < 10fei = 25Case 10 To 50fei = x * 2Case 50 To 100fei = x * 1.5fei = x * 1End SelectMsgBox "上网费用为:" & fei & "元" End IfEnd SubPrivate Sub Command2_Click()EndEnd Sub方法二：Private Sub Command1_Click() Dox = Val(InputBox("请输入上网时间:", , -1)) If x <> -1 ThenSelect Case xCase Is < 10fei = 25Case 10 To 50fei = x * 2Case 50 To 100fei = x * 1.5Case Is >= 100End Selectzongfei = zongfei & Space(3) & fei MsgBox zongfei, , "上网费用为"ElseExit DoEnd IfLoopEnd SubPrivate Sub Command2_Click()EndEnd Sub实验五一、选择B C B A C二、填空（1）for x=2 to 10s*(1-1/x)(2) 1 t>1E-6(3) j t(4) 5 11 51.Private Sub Command1_Click()For n = 1 To 100s = s + nNext nPrint sEnd SubPrivate Sub Command2_Click()n = 1Do While n <= 100s = s + nn = n + 1LoopPrint sEnd Sub2.Private Sub Command1_Click()For i = 0 To 20For j = 0 To 33If i * 5 + j * 3 + 1 / 3 * (100 - i - j) = 100 Then Print i, j, 100 - i - j Next jNext iEnd Sub3.Private Sub Command1_Click()n = 0DoIf n Mod 2 = 1 And n Mod 3 = 2 And n Mod 5 = 4 And n Mod 6 = 5 And n Mod 7 = 0 Then Exit Don = n + 1LoopPrint nEnd Sub4.'已知x,y,z分别是0~9中的一个数，求x,y,z的值，使得xxz+yzz=532. Private Sub Command1_Click()Dim x%, y%, z%, i%, j%For x = 0 To 9For y = 0 To 9For z = 0 To 9If (x * 100 + x * 10 + z) + (y * 100 + z * 10 + z) = 532 Then Print x, y, z NextNextNextEnd SubPrivate Sub Command2_Click()For x = 0 To 9For y = 0 To 9For z = 0 To 9If Val(x & x & z) + Val(y & z & z) = 532 Then Print x; y; z NextNextNextEnd Sub5.Private Sub Command1_Click()x = Val(Text1)y = x * 4n = 0Do While x <= yx = x * (1 + 0.1)n = n + 1LoopPrint x, nEnd Sub6.Private Sub Command1_Click()n = Val(InputBox("输入计算到第几项:", , 0))For i = 1 To ns = s + (-1) ^ (i + 1) * iNextPrint n, sEnd SubPrivate Sub Command2_Click()n = Val(InputBox("输入计算到第几项:", , 0))p = 1For i = 1 To ns = s + p * ip = -pNextPrint n, sEnd Sub7.'s=(0+1)+(0+1+2)+(0+1+2+3)+(0+1+2+3+4)+……(0+1+2+3+4+……n) Private Sub Command1_Click()Dim n%, s%n = Val(InputBox("输入计算到第几项:", , 0))s = 0: t = 0For i = 1 To nt = t + is = s + tNext iPrint sEnd SubPrivate Sub Command2_Click()Dim n%, s%n = Val(InputBox("输入计算到第几项:", , 0)) s = 0: t = 0For i = 1 To nt = 0For j = 1 To it = t + jNexts = s + tNextPrint sEnd Sub8.Private Sub Command1_Click()Dim s As Double, pi As Doublen = 1: s = 0Do While 1 / (2 * n - 1) >= 0.0001 '也可以是Do Until 1 / (2 * n - 1)< 0.0001s = s + (-1) ^ (n + 1) * 1 / (2 * n - 1)n = n + 1Looppi = 4 * sPrint piEnd Sub9.'5-9:输出所有的“水仙花数”.'所谓的“水仙花数”是指一个3位数，其各位数字的立方和等于该数本身。
VB实验参考答案VB实验参考答案VB（Visual Basic）是一种常用的编程语言，广泛应用于软件开发领域。
在学习VB的过程中，进行实验是非常重要的一部分。
本文将为大家提供一些VB实验的参考答案，帮助大家更好地理解和掌握VB编程。
实验一：简单的计算器程序要求：编写一个简单的计算器程序，能够实现基本的加减乘除运算。
参考答案：```vbPrivate Sub btnCalculate_Click()Dim num1 As DoubleDim num2 As DoubleDim result As Doublenum1 = CDbl(txtNum1.Text)num2 = CDbl(txtNum2.Text)If rbAdd.Checked Thenresult = num1 + num2ElseIf rbSubtract.Checked Thenresult = num1 - num2ElseIf rbMultiply.Checked Thenresult = num1 * num2ElseIf rbDivide.Checked ThenIf num2 <> 0 Thenresult = num1 / num2ElseMsgBox("Error: Division by zero!")End IfEnd IftxtResult.Text = resultEnd Sub```实验二：学生成绩管理系统要求：编写一个学生成绩管理系统，能够实现学生信息的录入、查询和统计功能。
参考答案：```vbPrivate Sub btnAdd_Click()Dim name As StringDim score As Integername = txtName.Textscore = CInt(txtScore.Text)lstStudents.Items.Add(name & " - " & score)End SubPrivate Sub btnSearch_Click()Dim searchName As StringDim index As IntegersearchName = txtSearch.Textindex = lstStudents.FindString(searchName)If index <> -1 ThenlstStudents.SelectedIndex = indexElseMsgBox("Student not found!")End IfEnd SubPrivate Sub btnStatistics_Click()Dim totalScore As IntegerDim averageScore As DoubleDim count As IntegerFor Each item As String In lstStudents.ItemsDim score As Integer = CInt(item.Split("-")(1).Trim()) totalScore += scorecount += 1NextaverageScore = totalScore / counttxtTotalScore.Text = totalScoretxtAverageScore.Text = averageScore```实验三：简单的图书管理系统要求：编写一个简单的图书管理系统，能够实现图书信息的录入、查询和删除功能。
