获得字符串中开始和结束字符串中间得值

 1 /// <summary>
 2         /// 获得字符串中开始和结束字符串中间得值
 3         /// </summary>
 4         /// <param name="str">字符串</param>
 5         /// <param name="s">开始</param>
 6         /// <param name="e">结束</param>
 7         /// <returns></returns> 
 8         public static string GetMidValue(string str, string s, string e)
 9         {
10             Regex rg = new Regex("(?<=(" + s + "))[.\\s\\S]*?(?=(" + e + "))", RegexOptions.Multiline | RegexOptions.Singleline);
11             return s.Trim(‘\\‘) + rg.Match(str).Value + e.Trim(‘\\‘);
12         }