程序填空例子.docx

1、程序填空例子以下程序的功能如图。Private Sub Form_Click()Dim a%, b%, c%, d!Dim x1, x2Dim p, q, ra = InputBox(请输入a的值)b = InputBox(请输入b的值)c = InputBox(请输入c的值)d = b * b - 4 * a * cp = -b / (2 * a)If d = 0 Then*SPACE* If【?】 Then r = Sqr(d) / (2 * a) x1 = p + r x2 = p - r Else x1 = p x2 = p*SPACE* 【?】 Print x1=; x1, x2=;

2、 x2*SPACE*【?】 q = Sqr(-d) / (2 * a) Print x1=; p; +; q; i, x2=; p; -; q; iEnd IfEnd Sub答 案 1 d 0 或 0 d 2 End If 3 Else以下程序用于判断一个正整数（3）是否为素数。Private Sub Form_Click() N 2 N-1 2 INT(SQR(N)n = InputBox(请输入一个正整数（3）)k = Int(Sqr(n)i = 2swit = 0*SPACE*Do While i = k And 【?】*SPACE*If 【?】 Then swit = 1Else*SP

3、ACE* 【?】End IfLoopIf swit = 0 Then Print n; 是一个素数Else Print n; 不是素数End IfEnd Sub答 案 1 swit = 0 2 n Mod i = 0 或 n/i = ni 或 n/i = int(n/i) 3 i = i + 1下面的程序段，用于实现在一个nXm的矩阵中，找出值最大的元素所在的行和列，并输出其值及行号和列号。Private Sub Form_Click()Dim mat() As IntegerDim n As Integer, m As Integern = Val(InputBox(请输入矩阵的行数)m =

4、 Val(InputBox(请输入矩阵的列数)*SPACE*【?】For i = 1 To n For j = 1 To m mat(i, j) = InputBox(请输入数组元素值) mat(i, j) = Val(mat(i, j) Next jNext iPrint 所建立的矩阵为For i = 1 To n For j = 1 To m Print mat(i, j); Next j PrintNext iMax = mat(1, 1)For i = 1 To n For j = 1 To m*SPACE* If 【?】 Then Max = mat(i, j) col = j*SP

5、ACE* 【?】 End If Next jNext iPrintPrint 矩阵最大的元素的值为：; mat(row, col)Print 它所在的行号为：; row; 列号为：; colEnd Sub答 案 1 ReDim mat(n, m) As Integer 或 ReDim mat(n, m) 2 Max Max 3 row = I以下程序段用于实现矩阵转置，即将一个nm的矩阵的行和列互换Private Sub Form_Click()Const n = 3Const m = 4Dim a(n, m) As Integer, b(m, m) As IntegerFor I = 1 T

6、o n For j = 1 To m a(I, j) = Int(Rnd * 90) + 10 Next j*SPACE*【?】For I = 1 To n For j = 1 To m*SPACE* 【?】 Next jNext IPrint 矩阵转置前For I = 1 To n For j = 1 To m Print a(I, j); Next j*SPACE* 【?】Next IPrint 矩阵转置后For I = 1 To m For j = 1 To n Print b(I, j); Next j PrintNext IEnd Sub答 案 1 Next i 或 Next 2 b

7、(j, i) = a(i, j) 3 print 或 form1.print 或 ?以下程序段用于输出杨辉三角:结果样式如图Private Sub Form_Click()Const n = 10Dim arr(n, n) As IntegerFor I = 1 To n arr(I, I) = 1*SPACE* 【?】Next IFor I = 3 To n For j = 2 To I - 1*SPACE* arr(i, j) =【?】 Next jNext IFor I = 1 To n For j = 1 To I*SPACE* 【?】 Next j PrintNext IEnd Su

8、b答 案 1 arr(i, 1) = 1 2 arr(i - 1, j - 1) + arr(i - 1, j) 3 Print arr(i, j); 或 form1.Print arr(i, j); 或 ? arr(i, j);下面过程max()用于求3个数中最大值，利用这个过程求5个数中最大值。Private Sub Form_Click()Print 5个数34、124、68、73、352的最大值是：max1 = max(34, 124, 68)*SPACE*max1 =【?】Print max1End SubPublic Function max(ByVal a%, ByVal b%,

9、 ByVal c%)*SPACE*If 【?】 Then m = aElse m = bEnd If*SPACE*If 【?】 Then max = mElse max = cEnd IfEnd Function答 案1 max(max1, 73, 352) 2 ab 或 b c 或 c m以下程序段利用随机函数生成15个10-100之间的整数，然后用选择法将其从小到大排序。INT( 91*RND+10)Private Sub Form_Click()Const n = 15Dim a(1 To n) As IntegerDim i As Integer, j As Integer, t As

10、 Integer, min As IntegerRandomizeFor i = 1 To n*SPACE* a(i) =【?】Next iFor i = 1 To n Print a(i);Next iPrintFor i = 1 To n - 1*SPACE* T=I For j = i + 1 To n If a(j) a(t) Then t = j Next j*SPACE* If 【?】 Then min = a(i): a(i) = a(t): a(t) = min End IfNext iFor i = 1 To n Print a(i);Next iEnd Sub答 案1 In

11、t(91 * Rnd) + 10 2 t=i 3 t I下面的程序段用于实现以下功能：利用冒泡法将一组整数从小到大排序。Private Sub Form_Click()Const n = 15Dim a(1 To n) As Integer, work As BooleanDim i As Integer, j As Integer, x As IntegerRandomizeFor i = 1 To n a(i) = Int(90 * Rnd) + 10Next iFor i = 1 To n Print a(i);Next iPrint*SPACE*For i = n To 2 【?】 w

12、ork = True For j = 1 To i - 1 If a(j) a(j + 1) Then x = a(j): a(j) = a(j + 1): a(j + 1) = x*SPACE* 【?】 End If Next j*SPACE* If work Then 【?】Next iFor i = 1 To n Print a(i);Next iEnd Sub答 案 1 Step -1 2 work = False 或 work=0 3 Exit For以下程序的功能如图。Private Sub Form_Click()Dim s As Single, m As Integer, p#

13、 s = 1 For m = 1 To 10*SPACE* p=N(M)【?】 s = s + 1 / p Next m Print sEnd SubFunction n(k%) p = 1 For m = 1 To k*SPACE* p =P*M Next m*SPACE*【?】N=PEnd Function答 案1 n(m) 2 p * m 3 n = p下面的程序段用于求矩阵相乘C=AB，设A、B、C分别为mp、pn、mn的矩阵。Private Sub Form_Click()Const m = 4, p = 3, n = 2Dim a(1 To m, 1 To p) As Intege

14、rDim b(1 To p, 1 To n) As IntegerDim c(1 To m, 1 To n) As IntegerDim i As Integer, j As Integer, k As Integer, sum As IntegerFor i = 1 To m For k = 1 To p a(i, k) = i Next kNext iFor i = 1 To p For k = 1 To n b(i, k) = i Next kNext iFor i = 1 To m For j = 1 To n*SPACE* 【?】 For k = 1 To p*SPACE* sum

15、= sum +【?】 Next k*SPACE* c(i, j) =【?】Next j, iPrint 输出矩阵For i = 1 To m For k = 1 To n Print c(i, k), Next k PrintNext iEnd Sub答 案 1 sum = 0 2 a(i, k) * b(k, j) 3 sum从键盘输入学生分数，统计学生总人数和各分数段人数，即优秀（90-100）、良好（80-89）、中等（70-79）、及格（60-69）、不及格（60以下）的人数。Private Sub Form_Click()Dim score%, n1%, n2%, n3%, n4%,

16、 n5%msg = 请输入分数（-1结束）msgtitile = 输入数据score = Val(InputBox(msg, msgtitle)*SPACE*While 【?】 total = total + 1*SPACE* Select Case 【?】 Case Is = 90 n1 = n1 + 1 Case Is = 80 n2 = n2 + 1 Case Is = 70 n3 = n3 + 1 Case Is = 60 n4 = n4 + 1 Case Else n5 = n5 + 1*SPACE* 【?】score = Val(InputBox(msg, msgtitle)Wen

17、dPrint n1, n2, n3, n4, n5,totalEnd Sub答 案 1 score =0 And score = 100 或 0=score And score = 100 或 0=score 或 score =0 And 100=score 2 score 3 End Select以下程序段用于实现：输入两个正整数m和n，求其最大公因数和最小公倍数。 -Private Sub Form_Click()Dim a%, b%, num1%, num2%, tempnum1 = InputBox(请输入一个正整数)num2 = InputBox(请输入一个正整数)*SPACE*If

18、 【?】 Then temp = num1: num1 = num2: num2 = tempEnd Ifa = num1b = num2*SPACE*Do While 【?】 temp = a Mod b a = b*SPACE* 【?】LoopPrint 最大公因数为：; aPrint 最小公倍数为：; num1 * num2 / aEnd Sub答 案 1 num1 num1 2 b 0 或 b 0 或 0 b 3 b = temp利用下面的过程求m!和m*nPrivate Sub Form_Click()Dim m As Integer, n As Integer m = 2 n =

19、3*SPACE* 【?】End SubPrivate Sub find(x As Integer, y As Integer) Dim s, i As Integer*SPACE* S=1 For i = 1 To x s = s * i*SPACE* p=p+y Next i Print s, pEnd Sub答 案1 find m, n 2 s = 1 或 s = 1:p=0 3 p+y以下程序段用于求n! Private Sub Form_Click() Dim sum As Integer, n As Integer n = InputBox(请输入一个正整数) sum = 0 For

20、 i = 1 To n*SPACE* sum =【?】 Next i Print sumEnd SubPrivate Function mul(ByVal x As Integer) Dim s As Integer, i As Integer s = 1*SPACE* For i = 1 To 【?】 s = s * i Next i*SPACE* 【?】End Function答 案1 sum+ mul(i) 2 x 3 mul = s从键盘上输入一串字符，以?结束，统计输入字符中的大、小写字母和数字的个数。Private Sub Form_Click()Dim ch$, n1%, n2%

21、, n3%n1 = 0n2 = 0n3 = 0ch = InputBox(请输入一个字符)*SPACE*Do While 【?】 Select Case ch Case a To z n1 = n1 + 1*SPACE* Case 【?】 n2 = n2 + 1 Case 0 To 9 n3 = n3 + 1 End Selectch = InputBox(请输入一个字符)*SPACE*【?】Print n1, n2, n3End Sub答 案1 ch ? 或 not ch = ? 2 A To Z 3 Loop下面的程序段用于建立文件并输出文件，文件内容如下：* * * * *Private

22、 Sub Form_Click()*SPACE*Open c:1.txt For 【?】 As #1For i = 1 To 5 Print #1, Spc(i); *Next i*SPACE*【?】*SPACE*Open c:1.txt For 【?】 As #1For i = 1 To 5 Line Input #1, x Print xNext iClose #1End Sub答 案1 Output 2 Close #1 或 Close 3 Input下面的程序段用于打印出以下图形 * * * * * * *Private Sub Form_Click()Dim i%, j%, k%Fo

23、r i = 0 To 3 For j = 0 To 2 - i Print ; Next j*SPACE* For k = 1 To 【?】 Print *; Next k PrintNext iFor i = 0 To 2 For j = 0 To i*SPACE* 【?】 Next j For k = 0 To 4 - 2 * i Print *; Next k*SPACE* 【?】Next iEnd Sub答 案 1 2 * i+1 2 Print ; 3 Print下面的程序实现：从键盘输入一个数字，将其插入一个有序数组中，插入后的数组仍保持有序。-Private Sub Form_C

24、lick()Dim a(10) As Integer, x As IntegerFor i = 1 To 8 a(i) = 2 * i - 1 Print a(i);Next iPrintx = InputBox(请输入要插入的整数)*SPACE*【?】i = 8Do While a(i) x*SPACE* 【?】 i = i - 1Loop*SPACE*If i 0 Then 【?】For i = 1 To 9 Print a(i);Next iEnd Sub答 案1 a(0) = x 2 a(i + 1) = a(i) 3 a(i + 1) = x本程序用于实现：从键盘接收一数字，判断其是否在数组中，如果在数组中则将其删除，否则显示该数字不在数组中。Private Sub Form_Click()Dim a(10) As Integer, x As IntegerFor i = 1 To 10 a(i) = Int(Rnd * 90) + 10 Print a(i);Next iPrintx = InputBox(请输入要删除的整数)For i = 1 To 10*S