vb编程 有一个4×5的矩阵,各元素值由键盘输入,求所有元素的平均值,并把高于平
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憇憇圏
2024-05-19 09:33:09
(1)1,3,5,2,4,18,50,25
(2)5,27,30,35,60,41,87,33
编写一个程序，把上面两组数据分别读入两个数组中，然后把两个数组中对应下标的元素相加，即1+5，3+27，……，25+33，并把相应的结果放入第三个数组中，最后输出第三个数组的值
代码
Private Sub Command1_Click()
Dim i
Dim x()
Dim y()
Dim z(0 To 7)
x = Array(1, 3, 5, 2, 4, 18, 50, 25)
y = Array(5, 27, 30, 35, 60, 41, 87, 33)
For i = 0 To 7
z(i) = x(i) + y(i)
Print z(i);
Next i
End Sub
运行界面
2．有一个n×m的矩阵，编写程序，找出其中最大的那个元素所在的行和列，并输出其值及行号和列号。
代码
Private Sub Command1_Click()
Dim a(1 To 10, 1 To 10) As Integer
Dim m%, n%, x%
For i = 1 To 10
For j = 1 To 10
a(i, j) = Int(Rnd * 101)
Print Tab((j - 1) * 5 + 2); a(i, j);
Next j
Next i
x = a(1, 1)
For i = 1 To 10
For j = 1 To 10
If a(i, j) > x Then m = i: n = j: x = a(i, j)
Next j
Next i
Print "最大数为：" & x & "，它为第 " & m & "行，" & "第" & n & "列的元素。"
End Sub
运行界面
3．某数组中有10个元素，元素的值由键盘输入，要求将前5个元素与后5个元素对换。即第1个元素与第10个元素互换，第2个元素与第9个元素互换……。请输出数组中原来各元素的值和对换后各元素的值。
代码
Option Base 1
Private Sub Command1_Click()
Dim a%(1 To 10)
Dim i%
For i = 1 To 10
a(i) = InputBox("请输入第" & i & "个数")
Print a(i);
Next i
For i = 1 To 5
t = a(i)
a(i) = a(10 - i + 1)
a(10 - i + 1) = t
Print a(i);
Next i
For i = 1 To 5
Print a(i + 5);
Next i
End Sub
运行界面
4．输入若干个学生的一门课的成绩，统计各分数段的人数。按小于60分、60～69分、70～79分、80～89分、90～100分各为一个分数段。
代码
Private Sub Command1_Click()
Dim a$(), k%, y
Dim x(0 To 10) As Integer
a = Split(Text1.Text, ",")
For Each y In a
k = y \ 10
x(k) = x(k) + 1
Next y
Picture1.Print "统计结果如下"
Picture1.Print "90-100分有：" & x(9) + x(10) & "人"
For i = 8 To 6 Step -1
Picture1.Print i * 10 & "分—"; i * 10 + 9 & "分有" & x(i) & "人"
Next i
For i = 1 To 5
z = z + x(i)
Next i
Picture1.Print "60分以下的有：" & z & "人"
End Sub
运行界面
5．我国身份证号码的第18位是由前17位通过公式计算出来的，请编程：要求从键盘上输入其一身份证号码的前17位，求出第18位
代码
Private Sub Command1_Click()
Dim W(), A(0 To 16), s%, y%
For i = 0 To 16
W = Array(7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2)
A(i) = InputBox("请输入第" & i + 1 & "个数")
Print A(i);
s = s + A(i) * W(i)
Next i
y = s Mod 11
y = y + 1
m = Choose(y, "1", "0", "x", "9", "8", "7", "6", "5", "4", "3", "2")
Print "第十八位是：" & m
End Sub
运行界面
6．有一个数列，前两项为1，从第三项开始，每一项都是前现两项之和，输出该数列前30项。
代码
Option Base 1
Private Sub Command1_Click()
Dim a!(1 To 30)
a(1) = 1: a(2) = 2
Print a(1); a(2)
For i = 3 To 30
a(i) = a(i - 1) + a(i - 2)
Print a(i);
Next i
End Sub
运行界面
7．随机产生15个不重复的A～Z之间的大写字母，存放在字符数组中。
代码
Private Sub Command1_Click()
Dim a(1 To 15)
For i = 1 To 15
a(i) = Int(Rnd * 26) + 65
Next i
For i = 1 To 14
For j = i + 1 To 15
If a(j) = a(i) Then a(j) = Int(Rnd * 26) + 65
Next j
Print Chr(a(i));
Next i
End Sub
运行界面
8．将从键盘上输入的一个数插入到数组指定位置。
代码
Private Sub Command1_Click()
Dim a(), l%, u%
Dim x%, k%
a = Array(1, 2, 3, 4, 5, 6, 7, 9, 10)
l = LBound(a)
u = UBound(a)
For i = l To u
Print a(i);
Next i
k = InputBox("请输入要插入的位置")
x = InputBox("请输入要插入的数")
ReDim Preserve a(l To u + 1)
For i = u To k Step -1
k = i
a(i + 1) = a(i)
Next i
a(k) = x
For i = l To u + 1
Print a(i);
Next i
End Sub
运行界面
9．在数组中查找从键盘上输入的一个数，如果找不到输出相应信息，如果找到，则删除该元素。
代码
Private Sub Command1_Click()
Dim a(), p As Boolean, x%, l%, u%, i%, k%
a = Array(1, 5, 8, 9, 4, 6, 3, 7)
l = LBound(a): u = UBound(a)
For i = l To u
Print a(i);
Next i
x = Val(InputBox("请输入要删除的数"))
For i = l To u
If x = a(i) Then
p = True: k = i
Exit For
End If
Next i
If p = True Then
For i = k + 1 To u
a(i - 1) = a(i)
Next i
u = u - 1
ReDim Preserve a(l To u)
For i = l To u
Print a(i);
Next i
Else
MsgBox "未找到！"
End If
End Sub
运行界面
10．求一个M行N列的矩阵四周元素之和，元素值可以随机产生，M、N从键盘输入。
代码
Private Sub Command1_Click()
Dim a%(), m%, n%, i%, j%, b%, c%, d%, e%, f%
m = InputBox("请输入该矩阵的行数")
n = InputBox("请输入该矩阵的列数")
ReDim a%(1 To m, 1 To n)
For i = 1 To m
For j = 1 To n
a(i, j) = Int(Rnd * 11)
Print Tab((j - 1) * 6 + 3); a(i, j);
Next j
Next i
For j = 1 To n
b = b + a(1, j)
e = e + a(m, j)
Next j
For i = 2 To m - 1
c = c + a(i, 1)
d = d + a(i, n)
Next i
f = b + c + d + e
Print f
End Sub
运行界面
11．某校召开运动会有10人参加男子100米短跑决赛，运动员号码和成绩如表5-3所示，试编制程序，按成绩由高到低排序。
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