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再发几个ASP不错的函数
******************** '函数作用:根据条件真假返回选定值中的某个 '参数:blnCondition:条件变量,varResultTrue:条件为真时返回值,varResultFalse:条件为假时返回值 Function IIF(blnCondition, varResultTrue,varResultFalse) If CBool(blnCondition) Then IIF = varResultTrue Else IIF = varResultFalse End If End Function '******************** '函数作用:判断某个字符串元素是否在给定枚举中 '参数:sEle:待判断的字符串,sArray:指定枚举 '举例:根据扩展名判断是否图片文件: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 '******************** '函数作用:判断某个字符串是否符合正则表达式 '参数:strString:字符串,strPattern:正则表达式 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'******************** '函数作用:正则提取 '参数:string:字符串,patrn:正则表达式 '返回:逗号分割的结果数组集成 Function doReExec(strng,patrn) Dim regEx, Match, Matches,RetStr ' 创建变量。 Set regEx = New RegExp ' 创建正则表达式。 regEx.Pattern = patrn ' 设置模式。 regEx.IgnoreCase = True ' 设置为不区分大小写。 regEx.Global = True ' 设置全局适用。 Set Matches = regEx.Execute(strng) ' 执行搜索。 For Each Match in Matches ' 对 Matches 集合进行迭代。 RetStr = RetStr & Match.Value & "," & vbCRLF Next doReExec = RetStr End Function 复制代码 '******************** '函数作用:显示分页链接 '参数:lngCurPage:当前页是第几页,lngPageCount:一共几页,strSueryString:分页链接需要附加的QueryString变量 Sub showPageNav(lngCurPage,lngPageCount,ByVal strQueryString) Response.Write "当前第" & lngCurPage & "页,共:" & lngPageCount & "页" Dim i,j,k If lngCurPage = 1 Then '如果是第一页 '如果lngPageCount小于10,则导航页最多到lngPageCount页 If lngPageCount < 10 Then j = lngPageCount Else j = 10 End If For i = 2 To j Response.Write("" & i & " ") Next ElseIf lngCurPage = lngPageCount Then '如果是最后一页 '如果lngPageCount小于10,则导航起始从1开始 If lngPageCount < 10 Then j = 1 Else j = lngPageCount - 10 End If For i = j To lngPageCount - 1 Response.Write("" & i & " ") Next Response.Write(lPageCount) Else '如果是中间的页 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("" & "<<" & " ") For i = j To lngCurPage - 1 Response.Write("" & i & " ") Next Response.Write(lngCurPage & " ") For i = lngCurPage + 1 To k Response.Write("" & i & " ") Next Response.Write(" " & ">>" & "") End If End Sub '******************** '函数作用:当前页请求方式是否为POST '说明:用于在同一页面处理显示和数据操作，当PostBack()为真时说明提交表单至当前页，应进行数据后台操作 Function PostBack() If UCase(Trim(Request.ServerVariables("REQUEST_METHOD"))) = "POST" Then PostBack = True Else PostBack = False End If End Function '******************** '函数作用:返回执行长度的随机字符串 '参数:Length:长度 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