vb程序阅读题与填空题.doc

Four short words sum up what has lifted most successful individuals above the crowd: a little bit more.-author-datevb程序阅读题与填空题vb程序阅读题与填空题VB程序阅读题与程序填空题综合练习1、阅读下面程序，当单击窗体之后，窗体上输出的是 。Private Sub Form_Click( )Dim i As Integer, j As IntegerDim k As Integer k=0For i = 0 To 10 Step 3For j = 1 To 10If j > = 5 Then i = i +4: Exit Forj = j + 1k = k + 1NextIf i > 8 Then Exit ForNextPrint kEnd Sub2、阅读下面的事件过程。单击窗体后，在文本框Text1和Text2中显示的内容分别是 和 ；若将程序中A语句与B语句的位置互换，再次执行程序，单击窗体后在Text1和Text2中显示的内容分别是 和 。Private Sub Form_Click( )Dim x As Integer, y As Integerx = 1 : y = 0Do While x < 3y = y + x 'A语句x = x + 1 'B语句LoopText1.Text = xText2.Text = yEnd Sub 3、下面程序段中，k循环共执行 次，在窗体上显示的结果是 。Dim b As Integer, k As Integerb = 1For k =1 To 5 b = b * kIf b > = 15 Then Exit ForElsek = k + 1End IfNext kPrint k, b4、以下是按钮cmdl的Click事件过程，求1100之间的所有质数。质数的个数显示在窗体上，在划线处填上缺少的内容。Private Sub cmdl_Click( )Dim intNum As Integer, int1 As Integer, int2 As IntegerintNum = 0For int1 = For int2 = 2 To int1 2If (int1 Mod int2) = 0 Then intNum=1End IfNext If sNum = sNum + 1End IfNextPrint End Sub5、若命令按钮的名称为CmdExit，程序要求单击以上命令按钮时，程序停止运行。请在画线处中填入适当的内容。Private Sub CmdExit_ ( ) End Sub6、下面的事件过程判断文本框txt1中输入的数所在区间，并在文本框txt2中输出判断结果。在画线处填入正确的内容。Private Sub Comandl_Click( )Dim int1 As Integerint1 =val (txt1.Text)Select Case int1Case txt2.Text = "值为0"Case txt2.Text = "值在1和10之间（包括1和10）"Case txt2.Text = "值大于10"Case Else txt2.Text = "值小于0"End SelectEnd Sub四、读程序题，写出程序运行结果。-1运行结果：Private Sub Form_Click() For I = 1 To 9 For j = 1 To 30 - 3 * I Print " " Next j For k = 1 To I Print k; Next k For k = I - 1 To 1 Step -1 Print k; Next k Print Next IEnd Sub2运行结果：Private Sub Command1_Click() Static S As Integer Dim i As Integer S = 1 For i = 1 To 5 S = S * i Next i Print SEnd Sub3运行结果：For X = 5 To 1 Step 1 For Y = 1 To 6 - X Print Tab(Y + 5); "*" Next Y PrintNext X4运行结果：S = 0: T = 0: U = 0 For X = 1 To 3 For Y = 1 To X For Z = Y To 3 S = S + 1 Next Z T = T + 1 Next Y U = U + 1Next XPrint S; T; U5运行结果：Private Sub Command1_Click() Dim b As Integera = 3.6b = 3.6Text1.Text = aText2.Text = bEnd Sub2以下程序判断从文本框Text1中输入的数据，如果该数据满足条件：除以3余2，除以5余3，除以7余4，则输出；否则将焦点定位在文本框Text1中，选中其中的文本。 Private Sub Command_Click() X = Val(Text1.Text) If （1） Then Print XElse （2） （3） （4） End IfEnd Sub五、编程题1设计一个计算程序。该程序用户界面如图所示，由四个文本框：文本框1（text1）、文本框2（text2）、文本框3（text3）、文本框4（text4），和三个按钮：命令按钮1（command1）、命令按钮2（command2）、命令按钮3（command4）组成程序运行后，用户按清除按钮，则清除文本框中显示的内容，按计算按钮，则计算三科平均成绩。单击退出按钮则退出。Private Sub Command1_Click() Text1.Text = 1 Text2. 2= ""2 3.Text = "" 3End SubPrivate Sub Command2_Click() If Text1. 4= " " Or Text2.Text = 5 Or Text3.Text = " " Then4 MsgBox "成绩输入不全！" 5 Else Text4.Text = (6 + Val(Text2.Text) 6 + Val(Text3.Text) / 7 7 8 8 End SubPrivate Sub Command3_Click()Unload 99 10 Sub10 3设计一个欢迎程序。该程序用户界面如图所示。要求程序运行后，用户选中粗体复选框时 “欢迎您！”几个字的字体变成粗体，用户选中斜体复选框时 “欢迎您！”几个字的字体变成斜体。若取消选中，则恢复原字体。按结束，则退出。4任给3个数，求其中间数，写出程序代码。三、阅读程序题1阅读下列程序并写出程序运行结果Private Sub Form_Click() Dim s As Long, f As Long, n As Integer, i As Integer n = 3 For i = 1 To n f = f + i s = s + f Next Print "s=" sEnd Sub写出程序运行时单击窗体后，窗体Form1上的输出结果。运行结果：2阅读下列程序并写出程序运行结果Private Sub Command1_Click() x = 0 Do While x < 100 x = (x + 2) * (x + 4) n = n + 1 Loop Text1.Text = Str(n) Text2.Text = Str(x) Text3.Text = Val(Text1.Text) + Val(Text2.Text)End Sub文件框Text3的结果是：运行结果：3阅读下列程序并写出程序运行结果Private Sub Command1_Click() Dim Sum1 As Integer, Sum2 As Integer Sum1 = 0: Sum2 = 1 For I = 1 To 4 For J = 1 To I Sum2 = Sum2 * J Next J Sum1 = Sum1 + Sum2Next IPrint Sum1End Sub 写出程序运行时单击命令按纽后，窗体上的输出结果。运行结果：4. 阅读下列程序并写出程序运行结果Private Sub Command1_Click() Dim x As Integer6阅读下列程序并写出程序运行结果Private Sub Command1_Click()Dim A(2 To 7) As Integer Dim b As IntegerFor b = 2 To 7A(b) = bNext bText1.Text = A(b - 2)End Sub程序运行后，单击命令按纽文本框Text1的结果是：Static s As Integer x = Val(InputBox("请输入一个正整数=") If x < 6 Then s = s * x Else s = s + x End If Text1.Text = "s=" & Str(s)End Sub程序运行时连续3次单击Command1，且设输入的数据为6、5、4时，分别写出文本框Text1的值。5阅读下列程序并写出程序运行结果Private Sub Form_Click() Dim A(1 To 3) As String Dim c As Integer,j As Integer A(1) = “2” A(2) = “4” A(3) = “6” c=0 For j=1 to 3 c = c + Val(A(j)Next jPrint cEnd Sub 写出程序运行时单击窗体后，窗体Form1上的结果： 11. 阅读下列程序并写出程序运行结果 Private Sub Form_Click( ) Static Sum As Integer I=1 While i<=3 Sum=Sum+I I=I+1 Wend Print Sum End Sub点击两次后，Sum的值应该是：运行结果：7阅读下列程序并写出程序运行结果Sub test(i As Integer) i = i + 1End SubPrivate Sub Form_Click() Dim x As Integer x = 4 Print "x=" xCall test(x) Print "x=" xEnd Sub8. 阅读下列程序并写出程序运行结果Private Sub Form_Click() a = 1: b = 1 Print "A=" a; ",B=" b Call mult(a) Print "A=" a; ",B=" bEnd SubPrivate Sub mult(x) x = 2 * x b = 3 * bEnd Sub9. 阅读下列程序并写出程序运行结果Private Sub Form_Click() Dim i As Integer, a As Integer k = 0 For i = 1 To 6 If i > 3 Then a = a + 4 Else a = a + 1 End If Next iPrint i, aEnd Sub 写出程序运行时单击窗体后，Form1上的输出结果。10. 阅读下列程序并写出程序运行结果Sub Change(ByVal x As Integer, ByVal y As Integer) Dim t As Integer t=x x=y y=t Print x,yEnd subPrivate Sub Form_Click() Dim a As Integer, b As Integer a = 3: b = 4Change a, b Print a,bEnd Sub 写出程序运行时单击窗体后，Form1上的输出结果 (20) 下列程序段执行结果为 ( )x=5 y=-6 If Not x>0 Then x=y-3 Else y=x+3 Print x-y; y-x A) -3 3  B) 5 -9 C) 3 -3  D) -6 5 (23) 单击命令按钮时，下列程序的执行结果为 ( )Private Sub Command1_Click()  Dim x As Integer, y As Integer x=12:y=32  Call Proc(x,y)  Print x; y End Sub Public Sub Proc(n As Integer, ByVal m As Integer)  n=n Mod 10 m=m Mod 10 End Sub A) 1232  B) 232 C) 23  D) 123 二、填空题(1) 完成下面的程序，使显示结果如下图所示。 Private Sub Form_Click()  FontSize=18 Sample=" 【1】  " x=(ScaleWidth-TextWidth(Sample) ) /2 y=(ScaleHeight-TextHeight(Sample) ) /2 CurrentX=x CurrentY=y 【2】  Sample End Sub (2) 下列程序的功能是：当x<50时，y=0.8×x；当50x100时，y=0.7×x；当x>100时，没有意义。请填空。 Private Sub Command1_Click()  Dim x As Single x=InputBox("请输入x的值！")  【3】   Case Is < 50 y=0.8 * x Case 50 To 100 y=0.7 * x 【4】   Print "输入的数据出界！" End Select Print x, y End Sub 35.窗体上有Text1、Text2两个文本框及一个命令按钮Command1,编写下列程序： Dim y As Integer Private Sub Command1_Click() Dim x As Integer x=2 Text1.Text= p2(p1(x),y) Text2.Text= p1(x) End Sub  Privage Function P1(x As Integer) As Integer x =x+y:y=x+y P1=x+y End Function Private Function P2(x As Integer, y As Integer) As Integer P2= 2*x+y End Function 当单击1 次和单击2次命令按钮后，文本框Text1和Text2内的值分别是（C） 5执行了以下的程序后，列表框中的数据项有_。Sub Form_click()For i=0 To 4List1.AddItem iNextFor i=1 To 2 List1.RemoveItem iNextEnd sub31.如下程序，运行的结果是（B） Private Sub Form_Click() Dim m As Integer,i As Integer,x(10) As Integer For i= 0 to 4 x(i)=i + 1 Next i For i=1 to 2 Call proc(x) Next i For i= 0 to 4 Print x(i); Next i End Sub  Public Sub proc(a() As Integer) Static i As Integer Do a(i)=a(i)+a(i+1) i=i+1 Loop While i<2 End Sub  32.假设有以下程序段： For I=1 to 3 For j=5 to 1 Step -1 Print I*j Next j Next I 则语句Print I*j的执行次数I、j的值分别是（A） 33.在窗体上一个文本框，其名称为Text1,然后编写如下事件过程： Private Sub Text1_KeyPress(KeyAscii As Integer) Dim str As String ,n As Integer str = UCase (Chr(KeyAscii) n=Len(str) Text1=String(n, str) End Sub  程序运行后，如果在键盘上输入单字母"K"，则在文本框Text1中显示的内容为（） 5.下面的程序输入X的值，按以下公式求Y值。Private Sub Command1_Click()X=Val(Text1.Text)Select Case XCase 【1 】Print "X<-100 OR X>200"Case 【2 】Y=100-XCase 【3 】Y=100+XCase 【4 】Y=400End SelectText2.Text=YEnd Sub6以下程序是利用公式来计算的值。其中，变量k表示当前符号项，t表示当前项，n表示当前项的序号，要求精度控制在0.00001内。试分析程序，完成空格处填的内容。Dim pi As Single,t As SingleDim n As Single,k As Singlepi=0 : n=1k=1 : t=1Do While(【1 】)pi =pi+tk=-kt=【2 】n=n+1Looppi=【3 】Print "pi="pi7下列程序的功能是输出的前20项，按每行5个数的形式输出。Fibonacci数列：F1=1,F2=1,Fn=Fn-1+Fn-2(n>=2)Dim a As Integer, b As IntegerDim c As Integer, i As Integera = 1: b = 1: i = 3Print a, b,Do While (i <= 20) c = a + b a = b b = c 【1 】 If 【2 】Then Print End If 【3 】LoopEnd Sub4执行下面的程序段后，s的值为_。a=5For i=2.6 To 4.9 Step 0.6s=s+1Next i5下面是一个体操评分程序。20位评委，除去一个最高分和一个最低分，计算平均分（设满分为10分）。Max=0Min=10For i=1 To 20n=Val(InputBox"请输入分数")If _Then Max=nIf _Then Min=ns=s+nNext is=_ p=s/18Print"最高分"Max,"最低分"MinPrint"最后得分:"p6下面程序的功能是求1到100的平方和，如果平方和超过了1000则跳出循环，输出此时的和S。9以下程序段，程序运行后，要求执行4次循环。x=1Do x=x+1print 15loop Until_10下列程序运行后，内层循环的循环总次数_。For x= 1 to 4For y =1 to xPrint yNext yNext xFor I=1 To 100s=s+i*iIf s>1000 Then_ End Ifnext iabc:Print s7以下程序段的输出结果是_。num=0While num<=2num=num+1Print numWend8以下程序段的输出结果是_。Dim j As Integer,s As IntegerDo3写出下面程序的运行结果。Private Sub Form_Click()For i=1 To 4x=4For j=1 To 3x=3For k=1 To 2x=x+6Next kNext jNext iprint xEnd Subs=s+jj=j+1Loop Until j=5Print "s="s四、程序阅读题1写出下面程序的运行结果。Private Sub Form_Click()Dim s As Integer,k As Integer,m As Integer,n As Integers=1For m=1 To 3For n=m To 3For k=n To m Step -1s=s*kNext k,n,mPrint sEnd Sub2写出下面程序的运行结果。Private Sub Form_Click()6写出下面程序的运行结果。Private Sub Form_Click()Dim m As Integer,n As Integer,k As Integerm=1 : n=a : k=5Do While m<=k*n m=m*nn=n+1Print m;nLoopPrint m;nEnd SubFor i=3 To 1 Step -1Print Spc(10-i);For j=1 To 2*i-1Print "*"Next jPrint Next iEnd Sub4写出下面程序的运行结果。Private Sub Form_Click()m=0Do m=m+1If m>10 Then Exit DoLoop Until m<10Print mEnd Sub5写出下面程序的运行结果。7写出下面程序的运行结果。Dim i As Integer,a As IntegerDo While i<20Do While TrueIf i Mod 10=0 ThenExit DoElsei=i-1End IfLoopi=i+11 a=a+iLoopPrint aPrivate Sub Form_Click()Dim m As Integer,n As Integerm=10Do m=m+nFor n=10 To m step -1m=m+nNext nLoop While m<50Print m;nEnd Sub18下列程序的输出结果是_。Dim y As Integery=10While y<>0y=y-1WendPrint "y=" ; yA) y=0B) y=1C) y=随机值D) y=-119以下程序的输出结果是_。Dim m As Integerm=1While m<=3m=m+1Print m;WendA) 2B) 2 3C) 2 3 4D) 2 3 4 520下面的程序运行结果是_。Private Sub Form_Click()m=0Do Until 0m=m+1If m>10 Then Exit DoLoopPrint mEnd Sub1下列过程的功能是：在对多个文本框进行输入时，对第一个文本框（Text1）输入完毕后用回车键使焦点跳到第二个文本框（Text2），而不是Tab键来切换。请完成该程序。Private Sub Text1_KeyDown(KeyCode As Integer, Shift As Integer)If 【1 】 Then Text2. 【2 】End IfEnd Sub1编写如下两个事件过程：Private Sub Form_KeyDown(KeyCode As Integer, Shift As Integer)Print Chr(KeyCode)End SubPrivate Sub Form_KeyPress(KeyAscii As Integer)Print Chr(KeyAscii)End Sub在一般情况下（即不按住Shift键和锁定大写），运行程序，如果按A键，则程序的输出结果是什么？2在窗体上画一个命令按钮和一个文本框，并把窗体的KeyPreview属性设置为True，然后编写如下代码：Dim saveall As StringPrivate Sub Command1_Click()Text1.Text = UCase(saveall)End SubPrivate Sub Form_KeyPress(KeyAscii As Integer)saveall = saveall + Chr(KeyAscii)End SubPrivate Sub Form_Load()Text1.Text = ""End Sub程序运行后，在键盘上输入abcdefg，单击命令按钮，写出文本框上显示的内容。3.单击窗体时，下列程序的执行结果为_。Private Sub Form_Click() Test (2)End SubPrivate Sub Test(x As Integer) x = x * 2 + 1 If x < 6 Then Call Test(x) End If x = x * 2 + 1 Print x;End Sub6单击窗体时，下列程序代码的执行结果为_，如果在Procl过程的第二形参y前加ByVal关键字，那么单击窗体时，程序代码的执行结果为_。Private Sub Form_Click() Dim x As Integer, y As Integer, z As Integer x = 1: y = 2: z = 3 Call procl(x, x, z) Call procl(x, y, y)End SubPrivate Sub procl(x As Integer, y As Integer, z As Integer) x = 3 * z y = 2 * z z = x + y Print x; y; zEnd Sub9下列程序连续运行三次的结果为_。Option ExplicitSub First()Static s As IntegerDim i As IntegerFor i = 1 To 10 Step 2 s = s + iNext iPrint s;End SubPrivate Sub Command1_Click()Dim a As Integer, b As Integer, c As IntegerCall FirstEnd Sub10运行下列程序，在立即窗口上第二行显示_；第三行显示_。1写出下列程序的运行结果。Private Sub Command1_Click()Dim x%, y%x = 18y = 28Call swap(x, y)Print x, yEnd SubPrivate Sub swap(a%, b%)Dim t%t = aa = bb = tEnd SubOption ExplicitDim a As IntegerPrivate Sub Command1_Click()Dim b As IntegerDim d As Integera = 1: b = 2d = fun(a, fun(a, b)Debug.Print a, b, dEnd SubPrivate Function fun(k As Integer, n As Integer) As IntegerDebug.Print k, n;k = n + a + kn = k + a + nfun = k + nDebug.Print funEnd Function三、程序阅读题：3写出下列程序的执行结果。Option ExplicitSub Ss(ByVal x As Integer, ByRef y As Integer, z As Integer)x = x + 1y = y + 1z = z + 1End SubPrivate Sub Command1_Click()Dim a As Integer, b As Integer, c As Integer