VB经典例题(修改版)数组部分以后.docVIP

【学习指导】练习题P109 设计题1. （对调）第10页，共10页Private Sub Command1_Click()Dim a(1 To 15) As IntegerFor i = 1 To 15a(i) = Int(Rnd * (100 - 1 + 1) + 1)Print a(i);Next iPrintFor i = 1 To 15 2t = a(i)a(i) = a(15 - i + 1)a(15 - i + 1) = tNext iFor i = 1 To 15Print a(i);Next iEnd Sub也可以用动态数组完善程序，随机产生任意几个正整数并对调Dim a() As IntegerPrivate Sub Command1_Click()x = InputBox(请输入你想随机产生几个正整数)ReDim a(1 To x) As IntegerFor i = 1 To xa(i) = Int(Rnd * (100 - 1 + 1) + 1)Print a(i);Next iPrintFor i = 1 To x 2t = a(i)a(i) = a(x - i + 1)a(x - i + 1) = tNext iFor i = 1 To xPrint a(i);Next iEnd Sub2. （3和6题的合并）（计算数组各个方向的总和）第3题Private Sub Command1_Click()Dim a(1 To 5, 1 To 5) As IntegerRandomizeFor i = 1 To 5 For j = 1 To 5 a(i, j) = Int(Rnd * (10 - 1 + 1) + 1) b = b + a(i, j) Print Tab(j * 4); Trim(a(i, j); Next j Print ; b【目的在于和每行的数分开，可不加】 b = 0Next iFor j = 1 To 5 For i = 1 To 5 c = c + a(i, j) Next i Print Tab(j * 4); Trim(c); c = 0Next jPrint Print _【目的在于和下一组分开，如图，可加可不加】End Sub第6题【此程序先要点击窗体生成一组数据才能进行，也可修改成form-load事件直接进行计算】Dim a(1 To 5, 1 To 5) As IntegerPrivate Sub Command1_Click()For i = 1 To 5 For j = 1 To 5 b = b + a(i, j) Next jNext iPrint 所有元素之和=; bEnd SubPrivate Sub Command2_Click() For j = 1 To 5 c = c + a(1, j) + a(5, j) Next j For i = 2 To 4 c = c + a(i, 1) + a(i, 5) Next iPrint 所有靠边元素之和=; cEnd SubPrivate Sub Command3_Click()For i = 1 To 5For j = 1 To 5 If i = j Then d = d + a(i, j)Next jNext iFor i = 1 To 5 For j = 5 To 1 Step -1 If i + j = 6 Then d = d + a(i, j) Next jNext iPrint 两条对角线之和=; dEnd SubPrivate Sub Form_Click()For i = 1 To 5 For j = 1 To 5 a(i, j) = Int(Rnd * (100) + 1 Print a(i, j); Next j PrintNext iEnd Sub8、编程输出n行杨辉三角图形，n由键盘输入。(本题关键在定位上能对齐“_”)Dim a() As LongDim n As LongPrivate Sub Command1_Click()n = InputBox(请输入你想产生几行杨辉三角形？)ReDim a(1 To n, 1 To n)For i = 1 To n For j = 1 To n a(i, 1) = 1 If j = i Then a(i, j) = 1 Next jNext iFor i = 2 To n For j = 2 To n If j i Then Exit For a(i, j) = a(i - 1, j - 1) + a(i - 1, j) Next jNext iFor i = 1 To n For j = 1 To i Print Tab(5 * n + 8 * j - 4 * i); a(i, j); Next jNext iEnd Sub【图片以20行为例】9. 求斐波拉契数列的前n项并打印Dim a ()Private Sub Command1_Click()X=inputbox(想打印前？列)reDim a(1 To x)a(1) = 1a(2) = 1For i = 3 To x a(i) = a(i - 2) + a(i - 1)Next iFor i = 1 To xIf i Mod 6 = 0 Then PrintText1.Text = Text1.Text & a(i) & ，Next iEnd Sub【拷贝部分】14、已知数组a()，编程删除a中第5个元素。数组a中的元素分别为12，6，4，89，75，63，100，20，31。Private Sub Form_Click()Dim a(), i%, n%a = Array(12, 6, 4, 89, 75, 63, 100, 20, 31)n = UBound(a)For i = 0 To nPrint a(i);Next iPrintFor i = 5 To na(i - 1) = a(i)Next in = n - 1ReDim Preserve a(n)For i = 0 To nPrint a(i);Next iPrintEnd Sub15、随机生成一个整型的二维数组，范围在10,20之间，以上三角形式输出该数组。（下三角、全部元素）Dim a%(4, 4)Dim a%(4, 4)Private Sub Command1_Click()Picture1.ClsFor i = 0 To 4For j = i To 4Picture1.Print Tab(j * 6); a(i, j);Next jPicture1.PrintNext iEnd SubPrivate Sub Form_Load()For i = 0 To 4For j = 0 To 4a(i, j) = Int(Rnd * 11 + 10)Next jNext iEnd Sub16、利用随机函数生成一个44的矩阵(即二维矩阵),范围是20,50内的整数,输出每行中的最大值和下标。Private Sub Form_Click()Dim a%(3, 3), s0%, s1%, s2%, s3%, b0%, b1%, b2%, b3%Max = 40For i = 0 To 3For j = 0 To 3a(i, j) = Int(Rnd * 31 + 20)Print Tab(j * 5); a(i, j);If a(0, j) = Max Then s0 = a(0, j): b0 = jIf a(1, j) = Max Then s1 = a(1, j): b1 = jIf a(2, j) = Max Then s2 = a(2, j): b2 = jIf a(3, j) = Max Then s3 = a(3, j): b3 = jNext jNext iPrintPrint 第一行; s0; (; 0; b0; )Print 第二行; s1; (; 1; b1; )Print 第三行; s2; (; 2; b2; )Print 第四行; s3; (; 3; b3; )End Sub17、利用随机函数生成一个44的矩阵(即二维矩阵),范围是40,80内的整数，求它的最大值及所对应的下标。Private Sub Form_Click()Dim a%(3, 3)Min = 80For i = 0 To 3For j = 0 To 3a(i, j) = Int(Rnd * 41 + 40)Print Tab(j * 5); a(i, j);If a(i, j) = Min ThenMin = a(i, j): b = i: c = jEnd IfNext jNext iPrintPrint 最小值为; MinPrint 其下标为; (; b, c; )End Sub18、输入一系列字符串，编程求出长度最大的字符串并输出其所对应的次序。Private Sub Form_Click()Dim a(5) as string,b(4) as integer,t%,max%,imax%For i =1 to 5a(i)=inputbox(a)Next iFor i =0 to 4b(i)=len(trim(a(i)Next iMax=1For i =0 to 4If maxb(i) then max=b(i):imax=iNext iPrint max=;a(i)Print cixu=,imax+1End sub19、利用随机函数生成一个44的矩阵(即二维矩阵),范围是20,50内的整数,输出该矩阵所有数据之和Private Sub Form_Click()Dim a%(3, 3)For i = 0 To 3For j = 0 To 3a(i, j) = Int(Rnd * 31 + 20)Print Tab(j * 5); a(i, j);b=b+a(i,j)Next jNext iPrint b;End Sub20、输入一系列字符串，将字符串按递减次序排列。请编程实现。Dim a() As String, n%, i%, j%Private Sub Command1_Click()n = Text1ReDim a(1 To n) As StringFor i = LBound(a) To UBound(a)a(i) = InputBox(请输入字符串)Picture1.Print a(i); Spc(1);Next iEnd SubPrivate Sub Command2_Click()For i = 1 To nFor j = 1 To n - iIf a(j) amax Then amax = a(i)If a(i) a(1) Thenmaxa = a(i): m = iEnd IfNext iFor i = 1 To 10Print a(i);Next iPrint maxa= & maxa; 下标为 & mEnd Sub25、定义三个44的二维数组A,B,C，A和B中的元素均随机生成，数组A范围是120，数组B的范围是100200，数组C是A和B相加得到的。请编程生成并输出A,B,C。Private Sub Command1_Click()Dim a(3, 3), b(3, 3), c(3, 3), t%, m%For i = 0 To 3For j = 0 To 3a(i, j) = Int(Rnd * 20 + 1)Picture1.Print a(i, j);Next jNext iPicture1.PrintFor i = 0 To 3For j = 0 To 3b(i, j) = Int(Rnd * 101 + 100)Picture1.Print b(i, j);Next jNext iPicture1.PrintFor i = 0 To 3For j = 0 To 3c(i, j) = a(i, j) + b(i, j)Next jNext iEnd Sub26、利用随机函数生成一个44的矩阵(即二维矩阵),范围是20,50内的整数，求它的两条对角线上元素之和。Private Sub Form_Click()Dim a%(3, 3)For i = 0 To 3For j = 0 To 3a(i, j) = Int(Rnd * 31 + 20)Print Tab(j * 5); a(i, j);Next jNext is = a(1, 1) + a(2, 2) + a(3, 3) + a(0, 0) + a(0, 3) + a(1, 2) + a(2, 1) + a(3, 0)PrintPrint 两对角线上元素之和为:; sEnd Sub27、利用随机函数生成一个44的矩阵(即二维矩阵),范围是40,80内的整数，求它的最小值及所对应的下标。Private Sub Form_Click()Dim a%(3, 3)Min = 80For i = 0 To 3For j = 0 To 3a(i, j) = Int(Rnd * 41 + 40)Print Tab(j * 5); a(i, j);If a(i, j) = Min ThenMin = a(i, j): b = i: c = jEnd IfNext jNext iPrintPrint 最小值为; MinPrint 其下标为; (; b, c; )End Sub28、随机生成一个整型的二维数组，范围在10,20之间，以上三角形式输出该数组。（下三角、全部元素）Dim a%(4, 4)Dim a%(4, 4)Private Sub Command1_Click()Picture1.ClsFor i = 0 To 4For j = i To 4Picture1.Print Tab(j * 6); a(i, j);Next jPicture1.PrintNext iEnd SubPrivate Sub Form_Load()For i = 0 To 4For j = 0 To 4a(i, j) = Int(Rnd * 11 + 10)Next jNext iEnd Sub29、有10个评委对歌手进行打分（分数存在A数组中）要求编程计算出歌手平均得分（按去掉一个最高分和一个最低分的计算方法计算。）a = Array(98, 97, 95, 91, 90, 99, 93, 94, 93, 96)Private Sub Form_Click()Dim a(), max%, min%, imax%, imin%, s!a = Array(98, 97, 95, 91, 90, 99, 93, 94, 93, 96)n = UBound(a)For i = 0 To nPrint a(i);Next iPrintmin = a(0): imin = 0For i = 0 To nIf a(i) max Then max = a(i): imax = iNext iPrint max=; imax=; imaxReDim Preserve a(n - 2)s = 0For i = 0 To n - 2s = s + a(i)Print a(i);Next iPrintPrint avr=; s / (n - 1)End Sub31、声明一个整型的二维数组a(1 to 4,1 to 4)，用随机函数产生各元素，范围介于1,20之间，编程将第1行和第3行对应元素交换。Dim a%(1 To 4, 1 To 4), t%Private Sub Command1_Click()Picture1.ClsFor i = 1 To 4For j = 1 To 4Picture1.Print Tab(j * 4); a(i, j);Next jPicture1.PrintNext iEnd SubPrivate Sub Command2_Click()For i = 1 To 4For j = 1 To 4t = a(1, j): a(1, j) = a(3, j): a(3, j) = tPicture2.Print Tab(j * 4); a(i, j);Next jPicture2.PrintNext iEnd SubPrivate Sub Form_Load()For i = 1 To 4For j = 1 To 4a(i, j) = Int(Rnd * 20 + 1)Next jNext iEnd Sub32、随机产生15个小写字母，放在字符数组中。提示：c=chr(int(rnd*26+97)Private Sub Command1_Click()Dim c$(14), i%Picture1.ClsFor i = 0 To 14c(i) = Chr(Int(Rnd * 26 + 97)Next iFor i = 0 To 14Picture1.Print c(i);Next iEnd Sub33、编写一个过程计算并输出区间100，1000内所有素数的和(要求判断素数使用过程（函数或子过程）来实现。调用该过程。(提示：只能被1和自身整除的自然数称为素数。)Function sushu%(ByVal x%)Dim m%, Tag As Boolean, i%m = Val(x)Tag = TrueFor i = 2 To m - 1If (m Mod i) = 0 Then Tag = FalseNext iIf Tag Then sushu = xEnd FunctionPrivate Sub Command1_Click()Dim i%, k%For i = 100 To 1000If sushu(i) Then List1.AddItem iNext iSum = 0For k = 0 To List1.ListCount - 1Sum = Sum + Val(List1.List(k)Next kLabel1 = 100，1000内所有素数和为: & SumEnd Sub34、随机产生10个1100的正整数放入数组，显示产生的数，求最大值、最小值、平均值。Private Sub Form_Click()Dim a(1 To 10) As Integer, i%, maxa%, mina%, suma%For i = 1 To 10a(i) = Int(Rnd * 71 + 30)Next imina = a(1)maxa = a(1)suma = a(1)For i = 2 To 10If a(i) maxa Then maxa = a(i)If a(i) mina Then mina = a(i)suma = suma + a(i)Next iFor i = 1 To 10Print a(i);Next iPrintPrint max=; maxa, min=; mina; aver=; suma / 10End Sub35、已知一维数组a()中的元素已排序，分别为12，15，21，25，27，35，36，39，48，52，编程将30插入数组a，并使a依然有序。Private Sub Command1_Click()Dim a(), i%, k%, x%, n%a = Array(12, 15, 21, 25, 27, 35, 36, 39, 48, 52)n = UBound(a)x = Val(Text1)For k = 0 To nIf x a(k) Then Exit ForNext kReDim Preserve a(n + 1)For i = n To k Step -1a(i + 1) = a(i)Next ia(k) = xFor i = 0 To n + 1Print a(i);Next iEnd Sub37、声明一个整型的二维数组a(1 to 4,1 to 4)，用随机函数产生各元素，范围介于1,20之间，编程将第2行和第4行对应元素交换。Private Sub Form_Click()Dim a(0 To 3, 0 To 3), i%, j%, tFor i = 0 To 3For j = 0 To 3a(i, j) = Int(Rnd * 21 + 1)Print Tab(j * 5); a(i, j)Next jNext iPrintPrintFor j = 0 To 3t = a(1, j): a(1, j) = a(3, j): a(3, j) = tNext jFor i = 0 To 3For j = 0 To 3Print Tab(j * 5); a(i, j)Next jNext iEnd Sub38、随机产生10个30,100内的整数，求最小值及所对应的下标。Private Sub Form_Click()Dim a(1 To 10) As Integer, i%, mina%, m%For i = 1 To 10a(i) = Int(Rnd * 70) + 30Next imina = a(1)For i = 2 To 10If a(i) a(1) Thenmina = a(i): m = iElseIf a(i) = a(1) Thenmina = a(i): m = iEnd IfNext iFor i = 1 To 10Print a(i);Next iPrint mina= & mina; 下标为 & mEnd Sub39、编一个判断宿舍的通用过程（函数或子过程）。调用该过程，计算并输出区间（1000，,1100）内所有素数的和。Function ss(n) As IntegerDim i%, tag As Booleantag = TrueFor i = 3 To n / 2If (n Mod i) = 0 Then tag = FalseNext iIf tag Then ss = nEnd FunctionPrivate Sub Picture1_Click()Dim i%, averaavera = 0For i = 1000 To 1100If ss(i) 0 Then Print ss(i)avera = avera + ss(i)Next iPicture1.Print averaEnd Sub40、编一子过程ProcMin,求一维数组a中的最小值，子过程的形参自己确定。Private Sub Form_Click()Dim a(1 To 10), amin, i%For i = 1 To 10a(i) = Int(Rnd *