再发几个ASP不错的函数
时间:2019-10-11 10:33 来源/作者:asp代码网
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********************
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'函数作用:根据条件真假返回选定值中的某个
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'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
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Function IIF(blnCondition, varResultTrue,varResultFalse)
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If CBool(blnCondition) Then
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IIF = varResultTrue
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Else
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IIF = varResultFalse
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End If
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End Function
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'********************
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'函数作用:判断某个字符串元素是否在给定枚举中
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'参数:sEle:待判断的字符串,sArray:指定枚举
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'举例:根据扩展名判断是否图片文件:InArray(strFileExt,"jpg,gif,bmp,png")
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Function InArray(sEle,sArray)
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Dim aArray
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Dim i
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aArray = Split(sArray,",")
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For i = 0 To UBound(aArray)
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If Trim(sEle) = Trim(aArray(i)) Then
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InArray = True
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Exit Function
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End If
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Next
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InArray = False
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End Function
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'********************
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'函数作用:判断某个字符串是否符合正则表达式
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'参数:strString:字符串,strPattern:正则表达式
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Function doReTest(strString, strPattern)
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Dim oRE
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Set oRE = New RegExp
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oRE.Pattern = strPattern
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oRE.IgnoreCase = True
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doReTest = oRE.Test(strString)
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Set oRE = Nothing
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End Function
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'********************
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'函数作用:正则提取
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'参数:string:字符串,patrn:正则表达式
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'返回:逗号分割的结果数组集成
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Function doReExec(strng,patrn)
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Dim regEx, Match, Matches,RetStr ' 创建变量。
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Set regEx = New RegExp ' 创建正则表达式。
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regEx.Pattern = patrn ' 设置模式。
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regEx.IgnoreCase = True ' 设置为不区分大小写。
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regEx.Global = True ' 设置全局适用。
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Set Matches = regEx.Execute(strng) ' 执行搜索。
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For Each Match in Matches ' 对 Matches 集合进行迭代。
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RetStr = RetStr & Match.Value & "," & vbCRLF
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Next
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doReExec = RetStr
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End Function
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复制代码 '********************
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'函数作用:显示分页链接
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'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
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Sub showPageNav(lngCurPage,lngPageCount,ByVal strQueryString)
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Response.Write "当前第" & lngCurPage & "页,共:" & lngPageCount & "页"
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Dim i,j,k
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If lngCurPage = 1 Then '如果是第一页
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'如果lngPageCount小于10,则导航页最多到lngPageCount页
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If lngPageCount < 10 Then
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j = lngPageCount
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Else
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j = 10
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End If
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For i = 2 To j
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Response.Write("<a href=""?" & strQueryString & "&p=" & i & """>" & i & "</a> ")
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Next
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ElseIf lngCurPage = lngPageCount Then '如果是最后一页
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'如果lngPageCount小于10,则导航起始从1开始
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If lngPageCount < 10 Then
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j = 1
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Else
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j = lngPageCount - 10
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End If
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For i = j To lngPageCount - 1
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Response.Write("<a href=""?" & strQueryString & "&p=" & i & """>" & i & "</a> ")
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Next
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Response.Write(lPageCount)
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Else '如果是中间的页
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If lngCurPage <= 5 Then
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j = 1
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Else
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j = lngCurPage - 5
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End If
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If lngPageCount <= lngCurPage + 5 Then
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k = lngPageCount
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Else
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k = lngCurPage + 5
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End If
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Response.Write("<a href=""?" & strQueryString & "&p=" & 1 & """>" & "<<" & "</a> ")
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For i = j To lngCurPage - 1
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Response.Write("<a href=""?" & strQueryString & "&p=" & i & """>" & i & "</a> ")
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Next
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Response.Write(lngCurPage & " ")
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For i = lngCurPage + 1 To k
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Response.Write("<a href=""?" & strQueryString & "&p=" & i & """>" & i & "</a> ")
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Next
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Response.Write(" <a href=""?" & strQueryString & "&p=" & lPageCount & """>" & ">>" & "</a>")
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End If
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End Sub
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'********************
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'函数作用:当前页请求方式是否为POST
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'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
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Function PostBack()
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If UCase(Trim(Request.ServerVariables("REQUEST_METHOD"))) = "POST" Then
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PostBack = True
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Else
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PostBack = False
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End If
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End Function
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'********************
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'函数作用:返回执行长度的随机字符串
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'参数:Length:长度
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Function GenRadomString(Length)
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dim i, tempS, v
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dim c(39)
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tempS = ""
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c(1) = "a": c(2) = "b": c(3) = "c": c(4) = "d": c(5) = "e": c(6) = "f": c(7) = "g"
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c(8) = "h": c(9) = "i": c(10) = "j": c(11) = "k": c(12) = "l": c(13) = "m": c(14) = "n"
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c(15) = "o": c(16) = "p": c(17) = "q": c(18) = "r": c(19) = "s": c(20) = "t": c(21) = "u"
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c(22) = "v": c(23) = "w": c(24) = "x": c(25) = "y": c(26) = "z": c(27) = "1": c(28) = "2"
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c(29) = "3": c(30) = "4": c(31) = "5": c(32) = "6": c(33) = "7": c(34) = "8": c(35) = "9"
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If isNumeric(Length) = False Then
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Response.Write "A numeric datatype was not submitted to this function."
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Exit Function
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End If
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For i = 1 to Length
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Randomize
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v = Int((35 * Rnd) + 1)
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tempS = tempS & c(v)
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Next
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GenRadomString = tempS
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End Function
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