100分求解。net正则取内容，采摘用的_ASP.NET

100分求解。.net正则取内容，采集用的。

html内容如下

HTML code

  <head> <meta http-equiv="Content-Type" content="text/html; charset=GB18030">  .  .  .  .</head><body> <script>   var imgdata = {                "queryEnc": "%D7%C0%C3%E6%B1%DA%D6%BD",                "displayNum": 9921457,                "bdIsClustered": "1",                "listNum": 2000,                "bdFmtDispNum": "9921457",                "thumbURL": "http://t1.baidu.com/it/u=3917541605,2488848911&fm=0&gp=0.jpg",                "bdSearchTime": "0.043"                 },                 {                "queryEnc": "%D7%C0%C3%E6%B1%DA%D6%BD",                "displayNum": 9921457,                "bdIsClustered": "1",                "listNum": 2000,                "bdFmtDispNum": "9921457",                "thumbURL": "http://t1.baidu.com/it/u=3917541605,2488848911&fm=0&gp=0.jpg",                "bdSearchTime": "0.043"                 }      </script></body>

我想取得thumbURL，怎么取？求解。正则我稀烂的。

------解决方案--------------------------------------------------------

C# code

            StreamReader reader = new StreamReader("c:\\1.txt",Encoding.Default);            string source = reader.ReadToEnd();            Regex reg = new Regex(@"(?is)(?<=""thumbURL""[^""]*?)""http:.*?""");            MatchCollection mc = reg.Matches(source);            foreach (Match m in mc)            {                MessageBox.Show(m.Value);            }
------解决方案--------------------------------------------------------
   string source = "{\r\n                \"queryEnc\": \"%D7%C0%C3%E6%B1%DA%D6%BD\",\r\n                \"displayNum\": 9921457,\r\n                \"bdIsClustered\": \"1\",\r\n                \"listNum\": 2000,\r\n                \"bdFmtDispNum\": \"9921457\",\r\n                \"thumbURL\": \"http://t1.baidu.com/it/u=3917541605,2488848911&fm=0&gp=0.jpg\",\r\n                \"bdSearchTime\": \"0.043\"\r\n                 },\r\n                 {\r\n                \"queryEnc\": \"%D7%C0%C3%E6%B1%DA%D6%BD\",\r\n                \"displayNum\": 9921457,\r\n                \"bdIsClustered\": \"1\",\r\n                \"listNum\": 2000,\r\n                \"bdFmtDispNum\": \"9921457\",\r\n                \"thumbURL\": \"http://t1.baidu.com/it/u=3917541605,2488848911&fm=0&gp=0.jpg\",\r\n                \"bdSearchTime\": \"0.043\"\r\n                 }\r\n";





      var matches= Regex.Matches(source, @"(?is)(?<=thumbURL\"":\s*\"")[^""]+(?="")");
       foreach(Match m in matches)
       {
           Response.WriteLine(m.Value);
       }
------解决方案--------------------------------------------------------
(?i)(?<=thumbURL[^:]+?\s*?['""])[^'""]+
------解决方案--------------------------------------------------------

C# codeRegex reg = new Regex(@"(?i)(?<=""thumbURL""\s*:\s*"")[^""]*(?="")");MatchCollection mc = reg.Matches(yourStr);foreach (Match m in mc){    richTextBox2.Text += m.Value + "\n";}/*------输出-----http://t1.baidu.com/it/u=3917541605,2488848911&fm=0&gp=0.jpghttp://t1.baidu.com/it/u=3917541605,2488848911&fm=0&gp=0.jpg*/