正则表达式 如何批量替换图片src链接地址

[googee2008]

现在采集一篇文章中得到文章内容字段为content，里面有很多图片地址为<IMG src="upload/1.jpg" border=0>

我想批量替换后的图片地址为 <IMG src="http://www.myname.com/upload/1.jpg" border=0>

先定义个string outhost=www.myname.com; 怎么写正则表达式匹配呢？

info1.Content=Regex.Replace(info1.Content, "<img src.*?>)?", @"<img src"+outhost+".*?>)?",RegexOptions.IgnoreCase);

[-过客-]

给下你的代码，看看你是怎么用的

string test = "<IMG src=\"upload/2009_11/09112110144808.jpg\" border=0>";
string outhost = "www.myname.com";
Regex reg = new Regex(@"(?is)(?<=<img\s+src=(['""]?))(?!http://)(?=[^'""\s>]+\1)");
string result = reg.Replace(test, "http://" + outhost + "/");
/*----------输出------------
<IMG src="http://www.myname.com/upload/2009_11/09112110144808.jpg" border=0>
*/

[-过客-]

try...

string outhost = "www.myname.com";
Regex reg = new Regex(@"(?is)(?<=<img\s+src=(['""]?))(?!http://)(?=[^'""\s>]+\1)");
string result = reg.Replace(yourStr, "http://" + outhost + "/");

[googee2008]

可是输出后还是：<IMG src="upload/2009_11/09112110144808.jpg" border=0> 没有加上去绝对地址啊

[googee2008]

info1是实例化实体 info1.content 相当于test

string outhost=System.Configuration.ConfigurationSettings.AppSettings["OutIP"].ToString()+"sbd2010/";

Regex reg = new Regex(@"(?is)(?<=<img\s+src=(['""]?))(?!http://)(?=[^'""\s>]+\1)");
string result = reg.Replace(info1.Content, outhost);

下断点获得值为："<IMG src="upload/091123144496680.gif" border=0>"

[去圣西罗-为尤文喝彩]

用EmEditor
批量正则
<img[^>]*?src\s*=\s*["＇]?([^"＇\s>]*)[^>]*>
替换为
空