ASP常用函数:getIMG() - 王朝网络宽屏版

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.knowsky.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")

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("第" & i + 1 & "张图片地址: " & aImages(i) & " ")

'列出第一张图片地址:

If UBound(aImages)> -1 Then Response.Write("第一张图片地址: " & aImages(0) & "")

'列出最后一张图片地址:

If UBound(aImages)> -1 Then Response.Write("最后一张图片地址: " & aImages(UBound(aImages)) & "")