VB程序設(shè)計(jì)方案編程考試題及答案

1、VB 程序設(shè)計(jì)編程考試卷及答案1. 輸入 3 個(gè)數(shù)，輸出最大的數(shù)Private Sub command1_click()Dim maxFor i = 1 To 3n = Val(InputBox(" 輸入第 " & i & " 個(gè)數(shù) ")If n > max Thenmax = nEnd IfNextPrint "三個(gè)數(shù)中最大的數(shù)是" 。 maxEnd Sub2. 有一元二次方程：aX2+bX+c=0,依次輸入a, b, c,判斷此方程是否有實(shí)根Private Sub Command1_Click()Dim a,

2、 b, c, na = Text1b = Text2c = Text3n = b * b - 4 * a * cIf n >= 0 ThenLabel4 = " 方程有根 "ElseLabel4 = " 方程無(wú)根 "End IfEnd Sub3. 輸入一個(gè)百分制的成績(jī)，若大于等于60 ，則用消息框彈出，顯示“恭喜！成績(jī)通過(guò)！”，若小于60 ，則彈出消息框，顯示“抱歉！成績(jī)沒(méi)有通過(guò)！Private Sub Form_Load()Text1 = ""End SubPrivate Sub Command1_Click()Dim nn

3、= Text1If n > =60 ThenVal (MsgBox(" 恭喜！成績(jī)通過(guò)！ ")ElseVal (MsgBox(" 抱歉！成績(jī)沒(méi)有通過(guò)！ ")End IfEnd Sub4. 輸入一年份，判斷它是否為閏年，并顯示有關(guān)信息。(判斷閏年的條件是：年份能被4整除但不能被100 整除，或者能被 400 整除)Private Sub Command1_Click()Dim y%y = InputBox(" 請(qǐng)輸入年份")If y Mod 4 = 0 And y Mod 100 <> 0 Or y Mod 400 =

4、 0 ThenVal (MsgBox(" 閏年！")ElseVal (MsgBox(" 平年！")End IfEnd Sub5. 輸入學(xué)生的百分制成績(jī)，轉(zhuǎn)換輸出為五級(jí)制成績(jī)，90100分轉(zhuǎn)換為優(yōu)秀，8089轉(zhuǎn)換為良好，7079轉(zhuǎn)換為中等，6069轉(zhuǎn)換為及格，060轉(zhuǎn)換為不及格。Private Sub Command1_Click()a = Val(InputBox(" 請(qǐng)輸入成績(jī)")If a > 100 Then Print " 超出范圍 "If a >= 90 And a <= 100 Then

5、 Print " 優(yōu)秀 "If a >= 80 Anda < 90ThenPrint "良好"If a >= 70 Anda < 80ThenPrint "中等"If a >= 60 Anda < 70ThenPrint "及格"If a < 60 ThenPrint " 不及格"End Sub6. 隨機(jī)產(chǎn)生一個(gè)三位正整數(shù)，然后逆序輸出，產(chǎn)生的數(shù)與逆序數(shù)同時(shí)顯示。例如，產(chǎn)生246，輸出是642 。Private Sub Command1_Click()D

6、im x%, x1%, x2%, x3%x = Text1x1 = x Mod 10x2 = (x Mod 100) 10x3 = x 100Label1 = x1 * 100 + x2 * 10 + x3End Sub7. 輸入兩個(gè)整數(shù)，求它們的最大公約數(shù)。private Sub Command1_Click()n1 = InputBox(" 輸入 n")m1 = InputBox(" 輸入 m")If m1 > n1 Thenm = m1: n = n1Elsem = n1: n = m1End Ifr = m Mod nDo While r

7、<> 0 m = n n = rr = m Mod nLoopPrint "m n 的最大公約數(shù)是："。 nEnd Sub8. 編程求200-400 范圍內(nèi) 5 的倍數(shù)或 7 的倍數(shù)之和。 (一個(gè)數(shù)如果同時(shí)是7 和 5 的倍數(shù)，則只能加一次。Private Sub Command1_Click()For i = 200 To 400If i Mod 5 = 0 Or i Mod 7 = 0 ThenSum = Sum + iEnd IfNext iFor i = 200 To 400If i Mod 5 = 0 And i Mod 7 = 0 ThenSum =

8、 Sum - iEnd IfNext iPrint 倍數(shù)之和“ = ” 。 SumEnd Sub9. 計(jì)算 100300 之間所有能被3 和 7 整除的數(shù)之和Private Sub Command1_Click()Dim iSum = 0For i = 100 To 300If i Mod 3 = 0 And i Mod 7 = 0 ThenSum = Sum + iEnd IfNext iPrint SumEnd Sub10. 分別統(tǒng)計(jì) 1-100 中，滿足 3 的倍數(shù)、 7 的倍數(shù)的數(shù)各有多少。Private Sub Command1_Click()Dim i, s3, s7s3 = 0s

9、7 = 0For i = 1 To 100If i Mod 3 = 0 Thens3 = s3 + 1End IfNext iFor i = 1 To 100If i Mod 7 = 0 Thens7 = s7 + 1End IfNext iPrint "3 的倍數(shù)"。 s3Print "7 的倍數(shù)"。 s7End Sub11. 某次歌曲大獎(jiǎng)賽，有7 個(gè)評(píng)委。如果分別輸入 7 個(gè)評(píng)委對(duì)某個(gè)參賽者的打分?jǐn)?shù)，按照去掉一個(gè)最高分和一個(gè)最低分的計(jì)算辦法，求出該參賽者的平均得分。Private Sub Command1_Click()Dim max, a(1 To

10、 7), min, sFor i = 1 To 7a(i) = Val(InputBox(" 輸入第 " & i & " 個(gè)數(shù) ") Next imax = a(1)min = a(1)s = a(1) For i = 2 To 7If a(i) > max Then max = a(i)If a(i) < min Then min = a(i)s = s + a(i)Next is = s - min - maxs = s / 5Print "平均分 "。 sEnd Sub12. 輸入一串字符，統(tǒng)計(jì)其中字

11、母A( 不區(qū)分大小寫(xiě))出現(xiàn)的次數(shù)。Private Sub Command1_Click()Dim c As String, a As Integerb = InputBox(" 請(qǐng)輸入字符")For i = 1 To Len(b)c = UCase(Mid(b, i, 1)If c = "A" Thena = a + 1End IfNext iPrint "a 出現(xiàn)的次數(shù)： "。 aEnd Sub13.我國(guó)目前有13億人口，按人口年增長(zhǎng)率0.8%計(jì)算，多少年后我國(guó)人口將超過(guò)26億。Private Sub Command1_Click(

12、)Dim a, i a = 13 i = 0Do While a < 26a = a * (1.008) i = i + 1LoopPrint iEnd Sub14 .小猴有桃若干，第一天吃掉一半多一個(gè)；第二天吃剩下桃子的一半多一個(gè)；以后每天都 吃尚存桃子的一半多一個(gè)，到第7天只剩一個(gè)，問(wèn)小猴原有桃多少？Private Sub Command1_Click()Dim a, i a = 1 Fori = 1 To 6 a = 2 * (a + 1)Next iPrint "小猴原有桃"。a?！敝弧盓nd Sub15 .求100以內(nèi)的素?cái)?shù)Private Sub Comma

13、nd1_Click()Dim i, jFor i = 2 To 100Forj = 2 To i- 1If i Mod j = 0 Then Exit ForNext jIf j = i Then Print iNext iEnd Sub16 .百元買百雞問(wèn)題。假定小雞每只5角，公雞每只2元，母雞每只3元，編程求解購(gòu)雞方案。Private Sub Command1_Click()Print "小雞"。""。"母雞"。""。"公雞"Print ""For x = 1 To 10

14、0For y = 1 To 100For z = 1 To 100If 0.5 * x + 2 * y + 3 * z = 100 ThenPrint ""。x。" "o v。 " " ° zEnd IfNext z Next y Next x End Sub17 .編程求斐波那契數(shù)列前11項(xiàng)。(斐波那契數(shù)列：F(0)=f(l)=l,F(n)=F(n-1)+F(n-2)n>=2 )Private Sub Command1_Click()Dim F(11), i As Long F(0) = 1 F=1 For i =

15、2 To 10 F(i) = F(i - 1) + F(i - 2) Next i For i = 0 To 11 Print F(i)。 Next iEnd Sub18 .將輸入的字符串以反序顯示。例如：輸入“ ASDFGT :顯示“ TGFDSA ”P(pán)rivate Sub Command1_Click()Dim a, b, c, d, na = InputBox("輸入字符串") n = Len(a) For b = 1 To Int(n 2) c = Mid(a, b, 1)Mid(a, b, 1) = Mid(a, n - b + 1, 1)Mid(a, n - b

16、 + 1, 1) = c Next b Print a End Sub19 .隨機(jī)產(chǎn)生10個(gè)30,100內(nèi)的整數(shù)，求最大值及所對(duì)應(yīng)的下標(biāo)Private Sub Command1_Click() Dim a(1 To 10), mRandomize For I = 1 To 10 a(I) = Int(Rnd * 71) + 30 Print a(I) Next I Max = a(1) For I = 2 To 10 If a(I) > Max Then Max = a(I): m = I Next I Print "max="。Max Print "max

17、的下標(biāo)為"。m End Sub20 .隨機(jī)產(chǎn)生10個(gè)30,100內(nèi)的整數(shù)，求最大值、最小值和平均值。Private Sub Command1_Click()Dim a(1 To 10)Fori = 1 To 10a(i) = Int(Rnd * 71) + 30Print 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 / 10Pri

18、nt "max="。MaxPrint "min="。 MinPrint "avg="。Avg End Sub21 .隨機(jī)產(chǎn)生10個(gè)30,100內(nèi)的整數(shù)，求最小值及所對(duì)應(yīng)的下標(biāo)。Private Sub Command1_Click()Dim a(1 To 10), mRandomizeFor I = 1 To 10a(I) = Int(Rnd * 71) + 30Print a(I)Next IMin = a(1)For I = 2 To 10If a(I) < Min Then Min = a(I): m = INext IPr

19、int "min="。 MinPrint "min的下標(biāo)為"。mEnd Sub22 .隨機(jī)生成一個(gè)整型的二維數(shù)組，范圍在 10,20之間，以下三角形式輸出該數(shù)組。Private Sub Command1_Click()Dim a(1 To 10, 1 To 10), i, j As IntegerFori = 1 To 10Forj = 1 To 10a(i, j) = Int(Rnd *11 + 10)NextNextFori = 1 To 10Forj = 1 To iPrint Spc(3)。a(i, j)。NextPrintNextEnd Sub

20、23 .隨機(jī)產(chǎn)生10個(gè)1100的正整數(shù)放入數(shù)組，顯示產(chǎn)生的數(shù)，求最大值、最小值、平均 值。Private Sub Command1_Click()Dim a(1 To 10)Fori = 1 To 10a(i) = Int(Rnd * 101) + 1Print 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 / 10Print "

21、max="。MaxPrint "min="。 MinPrint "avg="。Avg End Sub24 .利用隨機(jī)函數(shù)生成一個(gè)4X4的矩陣(即二維矩陣),范圍是20,50內(nèi)的整數(shù)，輸出該矩陣所有數(shù)據(jù)之和Private Sub Command1_Click()Dim a%(4, 5), sumFor i = 1 To 4Forj = 1 To 4a(i, j) = Int(Rnd * 31) + 20Print a(i, j)。sum = sum + a(i, j)Next jPrint '換行Next iPrint "sum

22、="。sumEnd Sub25 .已知有序數(shù)組a(),編程插入 x (x的值為14)。數(shù)組a中的元素分別為12, 6, 4,89, 75, 63, 100, 20, 31。Private Sub Command1_Click()Dim a(), i%, k%, x%, n%a = Array(4, 6, 12, 20, 31,63, 75, 89, 100)n = UBound(a)x = Val(InputBox("請(qǐng)輸入所要插入數(shù)")For k = 0 To nIf x < a(k) Then Exit ForNext kReDim Preserve a

23、(n + 1)For i = n To k Step -1 a(i + 1) = a(i)Next ia(k) = xFor i = 0 To n + 1Print a(i)。Next iEnd Sub26 .編寫(xiě)一函數(shù)，計(jì)算Double類型一維數(shù)組所有元素的平均值。27 .編一子過(guò)程ProcMin,求一維數(shù)組a中的最小值，子過(guò)程的形參自己確定Private Sub command1_Click()Dim a(1 To 10), min, i%Fori = 1 To 10a(i) = Int(Rnd * 101)Print a(i)。Next iCall ProcMin(a(), min)PrintPrint "min =" 。 minEnd SubSub ProcMin(b(), min)Dim i%min = b(LBound(b)For i = LBound(b) + 1 To UBound(b)If