编码:
1、求100以内的素数。
Private Sub Form_Click()
Dim i%, j%
For i = 2 To 100
For j = 2 To i - 1
If i Mod j = 0 Then Exit For
Next j
If j = i Then Print i
Next i
End Sub
2、从键盘输入任意长度的字符串,要求将字符顺序倒置,例如,将输入的“ABCDEFG”变换成“GFEDCBA”。
Private Sub Command1_Click()
Dim a$, I%, c$, d$, n%
a = InputBox$("输入字符串")
n = Len(a)
For I = 1 To Int(n \ 2)
c = Mid(a, I, 1)
Mid(a, I, 1) = Mid(a, n - I + 1, 1)
Mid(a, n - I + 1, 1) = c
Next I
Print a
End Sub
3、计算0~200之间所有能被11或5整除的数之和
Private Sub Form_Click()
Dim n%, i%
n = 0
For i = 1 To 200
If i Mod 11 = 0 Or i Mod 5 = 0 Then
n = n + i
End If
Next i
Print n
End Sub
4、输入一年份,判断它是否为闰年,并显示有关信息。(判断闰年的条件是: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("请输入年数")
If y Mod 4 = 0 And y Mod 100 <> 0 Or y Mod 400 = 0 Then
MsgBox (y & "年是闰年")
Else
MsgBox (y & "年是平年")
End If
End Sub
5、已知x,y,z 3个变量中存放了3个不同的数,比较它们的大小并进行调整,使得x y Then t = x: x = y: y = t
If x > z Then t = x: x = z: z = t
If y > z Then t = y: y = z: z = t
Print "排序后"; x; " "; y; " "; z
End Sub
6、求s=a+aa+aaa+...aaaaa(n个a),其中a和n的值随机产生,a的范围是[1,9]的整数,n的范围是[5,10]。如a=3,n=6,则s=3+33+333+3333+33333+333333。编程确定n和a的值,并计算s。
Private Sub Form_Click()
Dim s!, t!, i!, a%, n%
a = Int(Rnd * 9 + 1)
n = Int(Rnd * 6 + 5)
t = 0: s = 0
Print "a="; a, "n="; n
For i = 1 To n
t = t * 10 + a
s = s + t
Print t;
Next i
Print
Print "s="; s
End Sub
7、计算100~300之间所有能被3和7整除的数之和。
Private Sub Form_Click()
For i = 100 To 300
If i Mod 21 = 0 Then
s = s + i
Print i;
End If
Next i
Print
Print "s="; s
End Sub
8、编程求200--400范围内5的倍数或7的倍数之和。(一个数如果同时是7和5的倍数,则只能加一次。)
Private Sub Command1_Click()
Dim s1%,s2%,s3%,i%
S1=0
S2=0
For i=200 to 400
If i mod 5 =0 or i mod 7=0 then
s1=s1+i
End if
Next i
For i=200 to 400
If i mod 5 =0 or i mod 7=0 then
s2=s2+i
End if
Next i
S3=s1-s2
Print s3
End sub
9、找出被3、5、7除,余数为1的最小的5个正整数。
Private Sub Command1_Click()
Dim CountN%, n%
CountN = 0
n = 1
Do
n = n + 1
If n Mod 3 = 1 And n Mod 5 = 1 And n Mod 7 = 1 Then
Print n
CountN = CountN + 1
End If
Loop Until CountN = 5
End Sub
10、某次歌曲大奖赛,有7个评委。如果分别输入7个评委对某个参赛者的打分数,按照去掉一个最高分和一个最低分的计算办法,求出该参赛者的平均得分。
Private Sub Command1_Click()
Dim mark!, max!, min!, aver!, i%
aver = 0
For i = 1 To 7
mark = InputBox("输入第" & i & "位评委的打分")
If i = 1 Then
max = mark: min = mark
Else
If mark < min Then min = mark
If mark > max Then max = mark
End If
aver = aver + mark
Next i
aver = (aver - min - max) / 5
Print aver
End Sub
11、编程显示100~500之间所有的水仙花数之和。(水仙花数是3位数,其各位数之和等于该数本身)
Private Sub Form_Click()
Dim i%, s%, s1%, s2%, s3%, a!
a = 0
For i = 0 To 400
s = 99 + i
s1 = (s Mod 100) \ 10
s2 = s Mod 10
s3 = s \ 100
If s1 ^ 3 + s2 ^ 3 + s3 ^ 3 = s Then
a = s + a
End If
Next i
Print a
End Sub
12、随机产生一个三位正整数,然后逆序输出,产生的数与逆序数同时显示。例如,产生246,输出是642。
Dim a%, m%, b%, c%, d%
Private Sub Form_Click()
a = Int(Rnd * 900 + 100)
Print a
d = (a Mod 10) * 100
b = (a Mod 100) - (a Mod 10)
c = a \ 100
m = c + b + d
Print m
End Sub
13、从键盘输入三角形的三条边a,b,c的值,根据其数值,判断能否构成三角形。
Private Sub Form_Click()
Dim a%, b%, c%
a = Val(InputBox("input a"))
b = Val(InputBox("input b"))
c = Val(InputBox("input c"))
If a + b > c And a + c > b And b + c > a Then
MsgBox ("能构成三角形")
Else
MsgBox ("不能构成三角形")
End If
End Sub
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 n
Print a(i);
Next i
Print
For i = 5 To n
a(i - 1) = a(i)
Next i
n = n - 1
ReDim Preserve a(n)
For i = 0 To n
Print a(i);
Next i
Print
End Sub
15、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.Cls
For i = 0 To 4
For j = i To 4
Picture1.Print Tab(j * 6); a(i, j);
Next j
Picture1.Print
Next i
End Sub
Private Sub Form_Load()
For i = 0 To 4
For j = 0 To 4
a(i, j) = Int(Rnd * 11 + 10)
Next j
Next i
End Sub
16、利用随机函数生成一个4×4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 = 40
For i = 0 To 3
For j = 0 To 3
a(i, j) = Int(Rnd * 31 + 20)
Print Tab(j * 5); a(i, j);
If a(0, j) >= Max Then s0 = a(0, j): b0 = j
If a(1, j) >= Max Then s1 = a(1, j): b1 = j
If a(2, j) >= Max Then s2 = a(2, j): b2 = j
If a(3, j) >= Max Then s3 = a(3, j): b3 = j
Next j
Next i
Print
Print " 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 Sub
17、利用随机函数生成一个4×4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 = 80
For i = 0 To 3
For j = 0 To 3
a(i, j) = Int(Rnd * 41 + 40)
Print Tab(j * 5); a(i, j);
If a(i, j) <= Min Then
Min = a(i, j): b = i: c = j
End If
Next j
Next i
Print
Print "最小值为"; Min
Print "其下标为"; "("; b, c; ")"
End Sub
18、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 5
a(i)=inputbox("a")
Next i
For i =0 to 4
b(i)=len(trim(a(i)))
Next i
Max=1
For i =0 to 4
If max amax Then amax = a(i)
If a(i) < amin Then amin = a(i)
avera = avera + a(i)
Next i
For i = 1 To 10
Print a(i);
Next i
Print
Print "max="; amax, "min="; amin, "avera="; avera / 10
End Sub
22、定义三个4×4的二维数组A,B,C,A和B中的元素均随机生成,数组A的范围是1~20,数组B的范围是100~200,数组C是A和B相乘得到的。请编程生成并输出A,B,C。(相加)Dim a%(3, 3), b%(3, 3), c%(3, 3)
Private Sub Command1_Click()
Picture1.Cls
For i = 0 To 3
For j = 0 To 3
Picture1.Print Tab(j * 6); a(i, j);
Next j
Picture1.Print
Next i
End Sub
Private Sub Command2_Click()
Picture2.Cls
For i = 0 To 3
For j = 0 To 3
Picture2.Print b(i, j); "";
Next j
Picture2.Print
Next i
End Sub
Private Sub Command3_Click()
Picture3.Cls
For i = 0 To 3
For j = 0 To 3
Picture3.Print Tab(j * 7); c(i, j);
Next j
Picture3.Print
Next i
End Sub
Private Sub Form_Load()
23、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.Cls
For i = 0 To 14
c(i) = Chr(Int(Rnd * 26 + 97))
Next i
For i = 0 To 14
Picture1.Print c(i);
Next i
End Sub
24、随机产生10个[30,100]内的整数,求最大值及所对应的下标
Private Sub Form_Click()
Dim a(1 To 10) As Integer, i%, maxa%, m%
For i = 1 To 10
a(i) = Int(Rnd * 70) + 30
Next i
maxa = a(1)
For i = 2 To 10
If a(i) > a(1) Then
maxa = a(i): m = i
End If
Next i
For i = 1 To 10
Print a(i);
Next i
Print "maxa=" & maxa; "下标为" & m
End Sub
25、定义三个4×4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1~20,数组B的范围是100~200,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 3
For j = 0 To 3
a(i, j) = Int(Rnd * 20 + 1)
Picture1.Print a(i, j);
Next j
Next i
Picture1.Print
For i = 0 To 3
For j = 0 To 3
b(i, j) = Int(Rnd * 101 + 100)
Picture1.Print b(i, j);
Next j
Next i
Picture1.Print
For i = 0 To 3
For j = 0 To 3
c(i, j) = a(i, j) + b(i, j)
Next j
Next i
End Sub
26、利用随机函数生成一个4×4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 3
For j = 0 To 3
a(i, j) = Int(Rnd * 31 + 20)
Print Tab(j * 5); a(i, j);
Next j
Next i
s = a(1, 1) + a(2, 2) + a(3, 3) + a(0, 0) + a(0, 3) + a(1, 2) + a(2, 1) + a(3, 0)
Print
Print "两对角线上元素之和为:"; s
End Sub
27、利用随机函数生成一个4×4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 = 80
For i = 0 To 3
For j = 0 To 3
a(i, j) = Int(Rnd * 41 + 40)
Print Tab(j * 5); a(i, j);
If a(i, j) <= Min Then
Min = a(i, j): b = i: c = j
End If
Next j
Next i
Print
Print "最小值为"; Min
Print "其下标为"; "("; b, c; ")"
End Sub
28、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.Cls
For i = 0 To 4
For j = i To 4
Picture1.Print Tab(j * 6); a(i, j);
Next j
Picture1.Print
Next i
End Sub
Private Sub Form_Load()
For i = 0 To 4
For j = 0 To 4
a(i, j) = Int(Rnd * 11 + 10)
Next j
Next i
End Sub
29、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 n
Print a(i);
Next i
Print
min = a(0): imin = 0
For i = 0 To n
If a(i) < min Then min = a(i): imin = i
Next i
Print "min="; "imin="; imin
For i = imin + 1 To n
a(i - 1) = a(i)
Next i
ReDim Preserve a(n - 1)
For i = 0 To n - 1
If a(i) > max Then max = a(i): imax = i
Next i
Print "max="; "imax="; imax
ReDim Preserve a(n - 2)
s = 0
For i = 0 To n - 2
s = s + a(i)
Print a(i);
Next i
Print
Print "avr="; s / (n - 1)
End Sub
30、编程输出n行杨辉三角图形,n由键盘输入。
Private Sub Command1_Click()
n = Text1.Text
ReDim a(1 To n, 1 To n)
For i = 1 To n
For j = 1 To n
a(i, 1) = 1
If i = j Then a(i, j) = 1
Next j
Next i
For i = 2 To n
For j = 2 To n
a(i, j) = a(i - 1, j - 1) + a(i - 1, j)
Next j
Next i
For i = 1 To n
For j = 1 To i
Picture1.Print a(i, j); " ";
Next j
Picture1.Print
Next i
End Sub
31、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.Cls
For i = 1 To 4
For j = 1 To 4
Picture1.Print Tab(j * 4); a(i, j);
Next j
Picture1.Print
Next i
End Sub
Private Sub Command2_Click()
For i = 1 To 4
For j = 1 To 4
t = a(1, j): a(1, j) = a(3, j): a(3, j) = t
Picture2.Print Tab(j * 4); a(i, j);
Next j
Picture2.Print
Next i
End Sub
Private Sub Form_Load()
For i = 1 To 4
For j = 1 To 4
a(i, j) = Int(Rnd * 20 + 1)
Next j
Next i
End Sub
32、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.Cls
For i = 0 To 14
c(i) = Chr(Int(Rnd * 26 + 97))
Next i
For i = 0 To 14
Picture1.Print c(i);
Next i
End Sub
33、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 = True
For i = 2 To m - 1
If (m Mod i) = 0 Then Tag = False
Next i
If Tag Then sushu = x
End Function
Private Sub Command1_Click()
Dim i%, k%
For i = 100 To 1000
If sushu(i) Then List1.AddItem i
Next i
Sum = 0
For k = 0 To List1.ListCount - 1
Sum = Sum + Val(List1.List(k))
Next k
Label1 = "[100,1000]内所有素数和为:" & Sum
End Sub
34、随机产生10个1~100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 10
a(i) = Int(Rnd * 71 + 30)
Next i
mina = a(1)
maxa = a(1)
suma = a(1)
For i = 2 To 10
If a(i) > maxa Then maxa = a(i)
If a(i) < mina Then mina = a(i)
suma = suma + a(i)
Next i
For i = 1 To 10
Print a(i);
Next i
Print
Print "max="; maxa, "min="; mina; "aver="; suma / 10
End Sub
35、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 n
If x < a(k) Then Exit For
Next k
ReDim Preserve a(n + 1)
For i = n To k Step -1
a(i + 1) = a(i)
Next i
a(k) = x
For i = 0 To n + 1
Print a(i);
Next i
End Sub
37、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%, t
For i = 0 To 3
For j = 0 To 3
a(i, j) = Int(Rnd * 21 + 1)
Print Tab(j * 5); a(i, j)
Next j
Next i
Print
Print
For j = 0 To 3
t = a(1, j): a(1, j) = a(3, j): a(3, j) = t
Next j
For i = 0 To 3
For j = 0 To 3
Print Tab(j * 5); a(i, j)
Next j
Next i
End Sub
38、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 10
a(i) = Int(Rnd * 70) + 30
Next i
mina = a(1)
For i = 2 To 10
If a(i) < a(1) Then
mina = a(i): m = i
ElseIf a(i) = a(1) Then
mina = a(i): m = i
End If
Next i
For i = 1 To 10
Print a(i);
Next i
Print "mina=" & mina; "下标为" & m
End Sub
39、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 Integer
Dim i%, tag As Boolean
tag = True
For i = 3 To n / 2
If (n Mod i) = 0 Then tag = False
Next i
If tag Then ss = n
End Function
Private Sub Picture1_Click()
Dim i%, avera
avera = 0
For i = 1000 To 1100
If ss(i) <> 0 Then Print ss(i)
avera = avera + ss(i)
Next i
Picture1.Print avera
End Sub
40、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 10
a(i) = Int(Rnd * 101)
Print a(i);
Next i
Call ProcMin(a(), amin)
Print
Print "amin ="; amin
End Sub
Sub 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 i
End Sub
41、编一个冒泡排序法子过程,对已知的若干整数按递减次序排列。提示:子过程的形式为sub sort1(a%())。提示:子过程的形式为sub sort1(a%())。
Private Sub Command1_Click()
Dim b%(10), i%
Print "排序前"
For i = 0 To 9
b(i) = Int(Rnd * 100)
Print b(i);
Next i
Print
Print "排序后"
Call sort(b())
End Sub
Sub sort(a%())
Dim i%, m%, n%, min%, j%
n = UBound(a)
For i = 0 To n - 1
For j = 0 To n - 1 - i
If a(j) < a(j + 1) Then m = a(j): a(j) = a(j + 1): a(j + 1) = m
Next j
Next i
For i = LBound(a) To UBound(a) - 1
Print a(i);
Next i
End Sub
42、编一个选择排序法子过程,对已知的若干整数按递增次序排列。提示:子过程的形式为sub sort1(a%())。
Private Sub Command1_Click()
Dim b%(10), i%
Print "排序前"
For i = 1 To 10
b(i) = Int(Rnd * 100)
Print b(i);
Next i
Print
Print "排序后"
Call sort(b())
End Sub
Sub sort(a%())
Dim i%, m%, n%, min%, t%
n = UBound(a)
For i = 0 To n - 1
min = i
For j = i + 1 To n
If a(j) < a(min) Then min = j
Next j
m = a(i): a(i) = a(min): a(min) = m
Next i
For i = LBound(a) To UBound(a)
Print a(i);
Next i
End Sub
43、编一个冒泡排序法子过程,对已知的若干整数按递增次序排列。提示:子过程的形式为sub sort1(a%())。
Private Sub Command1_Click()
Dim b%(10), i%
Print "排序前"
For i = 0 To 9
b(i) = Int(Rnd * 100)
Print b(i);
Next i
Print
Print "排序后"
Call sort(b())
End Sub
Sub sort(a%())
Dim i%, m%, n%, min%, j%
n = UBound(a)
For i = 0 To n - 1
For j = 0 To n - 1 - i
If a(j) > a(j + 1) Then m = a(j): a(j) = a(j + 1): a(j + 1) = m
Next j
Next i
For i = LBound(a) + 1 To UBound(a)
Print a(i);
Next i
End Sub