xml解析标签

         //获取两个标签之间的值
         private static string GetStr(string message, string strStart, string strEnd)
         {
             int start = ;
             int end = ;
             start = message.IndexOf(strStart);
             if (start < ) return "";
             end = message.Substring(start + strStart.Length).IndexOf(strEnd);
             if (end >= )
             {
                 return message.Substring(start + strStart.Length, end);
             }
             return "";
         }