vb。net中的最大值及最小值函数的编写

'vb.net2008

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Public Class Form1

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

Dim min, max As Integer

Dim a() As Integer = {3, 2, 4, 1}

min = Proc(a)(0)

max = Proc(a)(1)

End Sub

Private Function Proc(ByVal a() As Integer)

Dim a_out(a.GetUpperBound(0)), a_m(1) As Integer

System.Array.Copy(a, a_out, a.GetUpperBound(0) + 1)

System.Array.Sort(a_out)

a_m(0) = a_out(0)

a_m(1) = a_out(a_out.GetUpperBound(0))

Return a_m

End Function

End Class

请教各位一个VB.NET的问题 找出两个最大数字

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

Dim numList As New List(Of Integer), str As String = ""

Dim strArr() As String = TextBox1.Text.Split(New Char() {" "c, ","c, "."c, Chr(13)}, StringSplitOptions.RemoveEmptyEntries)

For Each unitStr As String In strArr

If IsNumeric(unitStr) Then

numList.Add(CInt(unitStr))

Else

str = unitStr " "

End If

Next

numList.Sort()

Label1.Text = numList.Count "个数字被输入"

Label2.Text = "最大的数字是" numList(numList.Count - 1)

If numList.Count 1 Then Label2.Text = ",第二大数字是" numList(numList.Count - 2)

Label3.Text = str

End Sub

用vb.net求三个数中的最大值以及最小值函数的编写

MaxOrMin 指示返回最大还是最小.

Private Function Math(ByVal num1 As Integer, ByVal num2 As Integer, ByVal num3 As Integer, ByVal MaxOrMin As Short) As Integer

Dim s() As Integer = {num1, num2, num3}

Dim max, min As Integer

If s(0) s(1) Then

min = s(0)

max = s(1)

End If

If s(1) s(2) Then

min = s(1)

max = s(2)

End If

If MaxOrMin = 0 Then Return max

If MaxOrMin = 1 Then Return min

End Function

vb.net程序，利用随机函数产生100个1到100之间的整数，求其中的最大最小值。

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

Randomize() '产生随机数种子 以防止每次生成结果都一样

Dim a(100) As Integer '声明数组存放数据 用来保存随机数结果

Dim max As Integer, min As Integer '声明两个变量存最大值和最小值

min = 1000 : max = 0 '设置初值

For i = 0 To 99 '循环100次

a(i) = Int(Rnd() * 1000 + 1) '用rnd生成一个随机数 由于rnd范围为0-1之间的小数.所以*1000设置他的范围为0到999之间 加1变成1到1000之间

If a(i) = max Then max = a(i) '如果当前数值大于最大值的变量就保存

If a(i) = min Then min = a(i) '如果当前数值小于最小值的变量就保存

Next

MsgBox("最大值为" max)

MsgBox("最小值为" min)

End Sub

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