再發(fā)幾個(gè)ASP不錯(cuò)的函數(shù)

更新時(shí)間：2007年08月18日 22:37:46 作者：

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'函數(shù)作用:根據(jù)條件真假返回選定值中的某個(gè)
'參數(shù):blnCondition:條件變量,varResultTrue:條件為真時(shí)返回值,varResultFalse:條件為假時(shí)返回值
Function IIF(blnCondition, varResultTrue,varResultFalse)
   If CBool(blnCondition) Then
      IIF = varResultTrue
   Else
      IIF = varResultFalse
   End If
End Function

'********************
'函數(shù)作用:判斷某個(gè)字符串元素是否在給定枚舉中
'參數(shù):sEle:待判斷的字符串,sArray:指定枚舉
'舉例:根據(jù)擴(kuò)展名判斷是否圖片文件:InArray(strFileExt,"jpg,gif,bmp,png")
Function InArray(sEle,sArray)
    Dim aArray
    Dim i
    aArray = Split(sArray,",")
    For i = 0 To UBound(aArray)
        If Trim(sEle) = Trim(aArray(i)) Then
            InArray = True
            Exit Function
        End If
    Next
    InArray = False
End Function
'********************
'函數(shù)作用:判斷某個(gè)字符串是否符合正則表達(dá)式
'參數(shù):strString:字符串,strPattern:正則表達(dá)式
Function doReTest(strString, strPattern)
    Dim oRE
    Set oRE = New RegExp
    oRE.Pattern = strPattern
    oRE.IgnoreCase = True
    doReTest =  oRE.Test(strString)
    Set oRE = Nothing
End Function
'********************
'函數(shù)作用:正則提取
'參數(shù):string:字符串,patrn:正則表達(dá)式
'返回:逗號(hào)分割的結(jié)果數(shù)組集成
Function doReExec(strng,patrn)
  Dim regEx, Match, Matches,RetStr      ' 創(chuàng)建變量。
  Set regEx = New RegExp         ' 創(chuàng)建正則表達(dá)式。
  regEx.Pattern = patrn          ' 設(shè)置模式。
  regEx.IgnoreCase = True         ' 設(shè)置為不區(qū)分大小寫(xiě)。
  regEx.Global = True         ' 設(shè)置全局適用。
  Set Matches = regEx.Execute(strng)   ' 執(zhí)行搜索。
  For Each Match in Matches      ' 對(duì) Matches 集合進(jìn)行迭代。
    RetStr = RetStr & Match.Value & "," & vbCRLF
  Next
  doReExec = RetStr
End Function
復(fù)制代碼 '********************
'函數(shù)作用:顯示分頁(yè)鏈接
'參數(shù):lngCurPage:當(dāng)前頁(yè)是第幾頁(yè),lngPageCount:一共幾頁(yè),strSueryString:分頁(yè)鏈接需要附加的QueryString變量
Sub showPageNav(lngCurPage,lngPageCount,ByVal strQueryString)
    Response.Write "當(dāng)前第" & lngCurPage & "頁(yè),共:" & lngPageCount & "頁(yè)"
    Dim i,j,k
    If lngCurPage = 1 Then                    '如果是第一頁(yè)
        '如果lngPageCount小于10,則導(dǎo)航頁(yè)最多到lngPageCount頁(yè)
        If lngPageCount < 10 Then
            j = lngPageCount
        Else
            j = 10
        End If
        For i = 2 To j
            Response.Write("<a href=""?" & strQueryString & "&p=" & i & """>" & i & "</a> ")
        Next
    ElseIf lngCurPage = lngPageCount Then    '如果是最后一頁(yè)
        '如果lngPageCount小于10,則導(dǎo)航起始從1開(kāi)始
        If lngPageCount < 10 Then
            j = 1
        Else
            j = lngPageCount - 10
        End If
        For i = j To lngPageCount - 1
            Response.Write("<a href=""?" & strQueryString & "&p=" & i & """>" & i & "</a> ")
        Next
        Response.Write(lPageCount)
    Else                                    '如果是中間的頁(yè)
        If lngCurPage <= 5 Then
            j = 1
        Else
            j = lngCurPage - 5
        End If
        If lngPageCount <= lngCurPage + 5 Then
            k = lngPageCount
        Else
            k = lngCurPage + 5
        End If
        Response.Write("<a href=""?" & strQueryString & "&p=" & 1 & """>" & "<<" & "</a>  ")
        For i = j To lngCurPage - 1
            Response.Write("<a href=""?" & strQueryString & "&p=" & i & """>" & i & "</a> ")
        Next
        Response.Write(lngCurPage & " ")
        For i = lngCurPage + 1 To k
            Response.Write("<a href=""?" & strQueryString & "&p=" & i & """>" & i & "</a> ")
        Next
        Response.Write(" <a href=""?" & strQueryString & "&p=" & lPageCount & """>" & ">>" & "</a>")
    End If
End Sub
'********************
'函數(shù)作用:當(dāng)前頁(yè)請(qǐng)求方式是否為POST
'說(shuō)明:用于在同一頁(yè)面處理顯示和數(shù)據(jù)操作，當(dāng)PostBack()為真時(shí)說(shuō)明提交表單至當(dāng)前頁(yè)，應(yīng)進(jìn)行數(shù)據(jù)后臺(tái)操作
Function PostBack()
    If UCase(Trim(Request.ServerVariables("REQUEST_METHOD"))) = "POST" Then
        PostBack = True
    Else
        PostBack = False
    End If
End Function
'********************
'函數(shù)作用:返回執(zhí)行長(zhǎng)度的隨機(jī)字符串
'參數(shù):Length:長(zhǎng)度
Function GenRadomString(Length)
    dim i, tempS, v
    dim c(39)
    tempS = ""
    c(1) = "a": c(2) = "b": c(3) = "c": c(4) = "d": c(5) = "e": c(6) = "f": c(7) = "g"
    c(8) = "h": c(9) = "i": c(10) = "j": c(11) = "k": c(12) = "l": c(13) = "m": c(14) = "n"
    c(15) = "o": c(16) = "p": c(17) = "q": c(18) = "r": c(19) = "s": c(20) = "t": c(21) = "u"
    c(22) = "v": c(23) = "w": c(24) = "x": c(25) = "y": c(26) = "z": c(27) = "1": c(28) = "2"
    c(29) = "3": c(30) = "4": c(31) = "5": c(32) = "6": c(33) = "7": c(34) = "8": c(35) = "9"
    If isNumeric(Length) = False Then
        Response.Write "A numeric datatype was not submitted to this function."
        Exit Function
    End If
    For i = 1 to Length
        Randomize
        v = Int((35 * Rnd) + 1)
        tempS = tempS & c(v)
    Next
    GenRadomString = tempS
End Function