VB程序的設(shè)計(jì)編程考試題與答案

1、VB程序設(shè)計(jì)編程考試題及答案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, b

2、, 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 = T

3、ext1If 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 = 0 Th

4、enVal (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)，90 100 分轉(zhuǎn)換為優(yōu)秀，80 89 轉(zhuǎn)換為良好， 70 79 轉(zhuǎn)換為中等， 60 69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 "超出圍 "If a >= 90 And a <= 100 T

5、hen Print "優(yōu)秀 "If a >= 80 And a < 90 Then Print "良好 "If a >= 70 And a < 80 Then Print "中等 "If a >= 60 And a < 70 Then Print "及格 "If a < 60 Then Print "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 Su

6、b Command1_Click()Dim 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("m1 = InputBox("輸入輸入n")m")If m1 > n1 Thenm = m1: n = n1Elsem = n1: n = m1End Ifr = m M

7、od nDo While r <> 0m = nn = rr = m Mod nLoopPrint "m n的最大公約數(shù)是：" nEnd Sub8.編程求 200-400能加一次。圍 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 The

8、nSum = Sum - iEnd IfNext iPrint“倍數(shù)之和=” ; SumEnd Sub9.計(jì)算 100300 之間所有能被Private Sub Command1_Click()Dim iSum = 0For i = 100 To 3003 和7 整除的數(shù)之和If 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 = 0

9、s7 = 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 7),

10、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)其中字母A( 不區(qū)分大小寫

11、 ) 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()Dim a, i

12、a = 13i = 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, ia = 1For i = 1 To 6a = 2 * (a + 1)Next iPrint "小猴原有桃 " a;”只”End Sub15. 求 100 以的素?cái)?shù)Private Sub Command1_Click()D

13、im i, jFor i = 2 To 100For j = 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 100

14、For y = 1 To 100For z = 1 To 100If 0.5 * x + 2 * y + 3 * z = 100 ThenPrint "" x; "" y; "" zEnd IfNext zNext yNext xEnd 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(1)=1, F(n)=F(n-1)+F(n-2) n>=2 ）Private Sub Command1_Click()Dim F(11), i As LongF(0) = 1F(1) = 1For i = 2 To 1

15、0F(i) = F(i - 1) + F(i - 2)Next iFor i = 0 To 11Print 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”Private 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 + 1, 1) = cNext

16、 bPrint aEnd Sub19. 隨機(jī)產(chǎn)生 10 個(gè)30,100 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), mRandomizeFor I = 1 To 10a(I) = Int(Rnd * 71) + 30Print a(I)Next IMax = a(1)For I = 2 To 10If a(I) > Max Then Max = a(I): m = INext IPrint "max=" MaxPrint "max的下標(biāo)為 " mEnd Sub20. 隨機(jī)產(chǎn)生

17、 10 個(gè)30,100 的整數(shù)，求最大值、最小值和平均值。Private Sub Command1_Click()Dim a(1 To 10)For i = 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 / 10Print "max=" MaxPr

18、int "min=" MinPrint "avg=" AvgEnd Sub21. 隨機(jī)產(chǎn)生 10 個(gè)30,100 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 IPrint "min=" MinP

19、rint "min的下標(biāo)為 " mEnd Sub22. 隨機(jī)生成一個(gè)整型的二維數(shù)組，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 IntegerFor i = 1 To 10For j = 1 To 10a(i, j) = Int(Rnd *11 + 10)NextNextFor i = 1 To 10For j = 1 To iPrint Spc(3); a(i, j);NextPrintNextEnd Sub23. 隨機(jī)產(chǎn)生 10 個(gè) 1100 的正

20、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)For i = 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 "max=" MaxPrin

21、t "min=" MinPrint "avg=" AvgEnd Sub24. 利用隨機(jī)函數(shù)生成一個(gè) 4× 4 的矩陣 ( 即二維矩陣 ), 圍是 20,50 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 4For j = 1 To 4a(i, j) = Int(Rnd * 31) + 20Print a(i, j);sum = sum + a(i, j)Next jPrint '換行Next iPrint "sum=&quo

22、t; 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 Preser

23、ve 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 Sub26.編寫一函數(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%For i = 1 To 10a(i) = Int(Rnd * 101)Print a(i);Next iCall ProcMin(a(),

24、min)PrintPrint "min =" minEnd SubSub ProcMin(b(), min)Dim i%min = b(LBound(b)For i = LBound(b) + 1 To UBound(b)If b(i) < min Then min = b(i)Next iEnd Sub28. 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 Form_Click()Dim a(1 To 10), amin, i%For i = 1 To 10a(i) = Int(Rnd * 101)Print a(i);Next iCall ProcMin(a(), amin)PrintPrint "amin =" aminEnd SubSub ProcMin(b(), min)Dim i%min = b(LBound(b)For i =