开发学院WEB开发ASP ASP常用函数:getIMG() 阅读

ASP常用函数:getIMG()

 2009-07-20 10:41:35 来源:WEB开发网   
核心提示:目前还是有BUG的,最新的测试页面在: http://www.reallydo.com/getimg.asp正则分析页面在: http://jorkin.reallydo.com/article.asp?id=380 发现BUG请在后面留言,谢谢.1.31修正src=后面有空格不能正确匹配.已修正.src='&

目前还是有BUG的,最新的测试页面在: http://www.reallydo.com/getimg.asp
正则分析页面在: http://jorkin.reallydo.com/article.asp?id=380
发现BUG请在后面留言,谢谢.
1.31修正
src=后面有空格不能正确匹配.已修正.
src=''为空时出错.已修正.
发现BUG: 图片路径有多个空格时只能保留一个.未修正.
2.18修正
图片路径有多个空格时只能保留一个的BUG.已修正.
<%
'功能:获取全部图片地址,保存到一个数组.
'来源:http://jorkin.reallydo.com/article.asp?id=448
'需要ReplaceAll函数:http://jorkin.reallydo.com/article.asp?id=406

Function getIMG(sString)
   Dim sReallyDo, regEx, iReallyDo
   Dim oMatches, cMatch
   '//定义一个空数组
   iReallyDo = -1
   ReDim aReallyDo(iReallyDo)
   If IsNull(sString) Then
     getIMG = aReallyDo
     Exit Function
   End If
   '//格式化HTML代码
   '//将每个 <img 换行 方便正则替换
   sReallyDo = sString
   On Error Resume Next
   sReallyDo = Replace(sReallyDo, vbCr, " ")
   sReallyDo = Replace(sReallyDo, vbLf, " ")
   sReallyDo = Replace(sReallyDo, vbTab, " ")
   sReallyDo = Replace(sReallyDo, "<img ", vbCrLf & "<img ", 1, -1, 1)
   sReallyDo = Replace(sReallyDo, "/>", " />", 1, -1, 1)
   sReallyDo = ReplaceAll(sReallyDo, "= ", "=", True)
   sReallyDo = ReplaceAll(sReallyDo, "> ", ">", True)
   sReallyDo = Replace(sReallyDo, "><", ">" & vbCrLf & "<")
   sReallyDo = Trim(sReallyDo)
   Set regEx = New RegExp
   regEx.IgnoreCase = True
   regEx.Global = True
   '//去除onclick,onload等脚本
   regEx.Pattern = "\s[on].+?=([\""|\'])(.*?)\1"
   sReallyDo = regEx.Replace(sReallyDo, "")
   '//将SRC不带引号的图片地址加上引号
   regEx.Pattern = "<img.*?\ssrc=([^\""\'\s][^\""\'\s>]*).*?>"
   sReallyDo = regEx.Replace(sReallyDo, "<img src=""$1"" />")
   '//正则匹配图片SRC地址
  http://bizhi.cncms.com/
   regEx.Pattern = "<img.*?\ssrc=([\""\'])([^\""\']+?)\1.*?>"
   Set oMatches = regEx.Execute(sReallyDo)
   '//将图片地址存入数组
   For Each cMatch in oMatches
     iReallyDo = iReallyDo + 1
     ReDim PReserve aReallyDo(iReallyDo)
     aReallyDo(iReallyDo) = regEx.Replace(cMatch.Value, "$2")
   Next
   getIMG = aReallyDo
End Function
%>

<%
'用法:很多人都问我怎么用,其实数组怎么用的这个就怎么用.
sContent = "HTML代码字段" '//sContent代表Html代码,原来写个ors怎么就不懂是记录集呢。。。
Dim aImages : aImages = GetImg(sContent) '//定义一个数组,并且用来存放所有分析到的图片地址
'列出所有图片的地址:
For i = 0 To UBound(aImages)
   Response.Write("<b>第" & i + 1 & "张图片地址:</b> " & aImages(i) & "<br />")
Next
'列出第一张图片地址:
If UBound(aImages)> -1 Then Response.Write("<p><b>第一张图片地址:</b> " & aImages(0) & "</p>")
'列出最后一张图片地址:
If UBound(aImages)> -1 Then Response.Write("<p><b>最后一张图片地址:</b> " & aImages(UBound(aImages)) & "</p>")
%>

Tags:ASP 常用 函数

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