几种常用排序算法(asp)分享

<%

Dim aData
aData = Array(3,2,4,1,6,0)

Call ResponseArray(aData, “原来顺序”)
Call ResponseArray(SelectSort(aData), “选择排序”)
Call ResponseArray(QuickSort(aData), “快速排序”)
Call ResponseArray(InsertSort(aData), “插入排序”)
Call ResponseArray(BubbleSort(aData), “冒泡排序”)

‘选择排序
Function SelectSort(a_Data)
    Dim i, j, k
    Dim bound, t
    bound = UBound(a_Data)

    For i = 0 To bound-1
        k = i
        For j = i+1 To bound
            If a_Data(k) > a_Data(j) Then
                k = j
            End If
        Next
        t = a_Data(i)
        a_Data(i) = a_Data(k)
        a_Data(k) = t
    Next

    SelectSort = a_Data
End Function

‘快速排序
Function QuickSort(a_Data)
    Dim i, j
    Dim bound, t
    bound = UBound(a_Data)

    For i = 0 To bound-1
        For j = i+1 To bound
            If a_Data(i) > a_Data(j) Then
                t = a_Data(i)
                a_Data(i) = a_Data(j)
                a_Data(j) = t
            End If
        Next
    Next

    QuickSort = a_Data
End Function

‘冒泡排序
Function BubbleSort(a_Data)
    Dim bound
    bound = UBound(a_Data)
    Dim bSorted, i, t
    bSorted = False
   
    Do While bound > 0 And bSorted = False
       
        bSorted = True
        For i = 0 To bound-1
            If a_Data(i) > a_Data(i+1) Then
                t = a_Data(i)
                a_Data(i) = a_Data(i+1)
                a_Data(i+1) = t
                bSorted = False
            End If
        Next
        bound = bound – 1
    Loop
   
    BubbleSort = a_Data
End Function

‘插入排序
Function InsertSort(a_Data)
    Dim bound
    bound = UBound(a_Data)
    Dim i, j, t

    For i = 1 To bound
        t = a_Data(i)
        j = i
        Do While t<a_Data(j-1) And j>0
            a_Data(j) = a_Data(j-1)
            j = j – 1
        Loop
        a_Data(j) = t
    Next
       
    InsertSort = a_Data
End Function

‘输出数组
Sub ResponseArray(a_Data, str)
    Dim s
    s = “”
    Response.Write “<b>” & str & “：</b>”
    For i = 0 To UBound(a_Data)
        s = s & a_Data(i) & “,”
    Next
    s = Left(s, Len(s)-1)
    Response.Write s
    Response.Write “<hr>”
End Sub

%>

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