正则表达式获取字符串中的img标签中的url链接

1  var re = /src=\"([^\"]*?)\"/i;
2  var arr = str.match(re);
3  if (arr != undefined && arr.length > 0) {
4              insertHtml = arr[1];
5  }

 1         /// <summary>
 2         /// 获取字符串中img的url集合
 3         /// </summary>
 4         /// <param name="content">字符串</param>
 5         /// <returns></returns>
 6         public static List<string> getImgUrl(string content)
 7         {
 8             Regex rg = new Regex("src=\"([^\"]+)\"", RegexOptions.IgnoreCase);
 9             var m = rg.Match(content);
10             List<string> imgUrl = new List<string>();
11             while (m.Success)
12             {
13                 imgUrl.Add(m.Groups[1].Value); //这里就是图片路径                
14                 m = m.NextMatch();
15             }
16             return imgUrl;
17         }