vb.net快速排序 vbs排序

VB.NET數(shù)組的排序法？

如果你是從vb6剛過(guò)渡上vb。net，建議還是用冒泡排序法，容易理解。

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如果你正努力學(xué)習(xí)vb。net的方法，推薦一個(gè)例子如下：

Imports System

Imports System.Collections

Public Class SamplesArray

Public Class myReverserClass

Implements IComparer

' Calls CaseInsensitiveComparer.Compare with the parameters reversed.

Function Compare(x As Object, y As Object) As Integer _

Implements IComparer.Compare

Return New CaseInsensitiveComparer().Compare(y, x)

End Function 'IComparer.Compare

End Class 'myReverserClass

Public Shared Sub Main()

' Creates and initializes a new Array and a new custom comparer.

Dim myArr As [String]() = {"The", "QUICK", "BROWN", "FOX", "jumps", "over", "the", "lazy", "dog"}

Dim myComparer = New myReverserClass()

' Displays the values of the Array.

Console.WriteLine("The Array initially contains the following values:")

PrintIndexAndValues(myArr)

' Sorts a section of the Array using the default comparer.

Array.Sort(myArr, 1, 3)

Console.WriteLine("After sorting a section of the Array using the default comparer:")

PrintIndexAndValues(myArr)

' Sorts a section of the Array using the reverse case-insensitive comparer.

Array.Sort(myArr, 1, 3, myComparer)

Console.WriteLine("After sorting a section of the Array using the reverse case-insensitive comparer:")

PrintIndexAndValues(myArr)

' Sorts the entire Array using the default comparer.

Array.Sort(myArr)

Console.WriteLine("After sorting the entire Array using the default comparer:")

PrintIndexAndValues(myArr)

' Sorts the entire Array using the reverse case-insensitive comparer.

Array.Sort(myArr, myComparer)

Console.WriteLine("After sorting the entire Array using the reverse case-insensitive comparer:")

PrintIndexAndValues(myArr)

End Sub 'Main

Public Shared Sub PrintIndexAndValues(myArr() As [String])

Dim i As Integer

For i = 0 To myArr.Length - 1

Console.WriteLine(" [{0}] : {1}", i, myArr(i))

Next i

Console.WriteLine()

End Sub 'PrintIndexAndValues

End Class 'SamplesArray

'This code produces the following output.

'

'The Array initially contains the following values:

' [0] : The

' [1] : QUICK

' [2] : BROWN

' [3] : FOX

' [4] : jumps

' [5] : over

' [6] : the

' [7] : lazy

' [8] : dog

'

'After sorting a section of the Array using the default comparer:

' [0] : The

' [1] : BROWN

' [2] : FOX

' [3] : QUICK

' [4] : jumps

' [5] : over

' [6] : the

' [7] : lazy

' [8] : dog

'

'After sorting a section of the Array using the reverse case-insensitive comparer:

' [0] : The

' [1] : QUICK

' [2] : FOX

' [3] : BROWN

' [4] : jumps

' [5] : over

' [6] : the

' [7] : lazy

' [8] : dog

'

'After sorting the entire Array using the default comparer:

' [0] : BROWN

' [1] : dog

' [2] : FOX

' [3] : jumps

' [4] : lazy

' [5] : over

' [6] : QUICK

' [7] : the

' [8] : The

'

'After sorting the entire Array using the reverse case-insensitive comparer:

' [0] : the

' [1] : The

' [2] : QUICK

' [3] : over

' [4] : lazy

' [5] : jumps

' [6] : FOX

' [7] : dog

' [8] : BROWN

VB.NET中DATAGRIDVIEW做排名（要序號(hào)）求助?。?！

第一種方式：手動(dòng)設(shè)置，設(shè)置列允許重新排列，這樣在單擊datagridview的列名時(shí)，就會(huì)自動(dòng)排序

第二種方式：自動(dòng)排序，想要按那列排序，就設(shè)置那列的SortMode的屬性為：Programmatic

vb.net 如何對(duì)數(shù)據(jù)庫(kù)查詢結(jié)果記錄集排序？

加了單引號(hào)就是一個(gè)常量字符串了，對(duì)于每一行都是一樣的

像這種放在最前面的字段，order by 1 就可以了

vb.net的隨機(jī)3個(gè)數(shù)字，然后排序一下

給你一個(gè)最簡(jiǎn)單的冒泡排序代碼：

將三個(gè)數(shù)放到一個(gè)數(shù)組中。

a(0)=val(text1.text):a(1)=val(text2.text):a(2)=val(text3.text)

dim flag as Boolean,temp as Integer

for i = 0 to 2

flag = true

for j = 2 to 1

if a(j)a(j-1) then

temp = a(j-1)

a(j-1) = a(j)

a(j) = temp

flag = false

end if

next j

if flag then Exit For

next i

text4.text=a(0):text5.text=a(1):text6.text=a(2)

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