.NET截断字符串

 1         /// <summary>
 2         /// 截断字符串
 3         /// </summary>
 4         /// <param name="s">要截断的字符串</param>
 5         /// <param name="len">要保留的字符长度</param>
 6         /// <returns>截断后的字符串</returns>
 7         public static string Format(string s, int len)
 8         {
 9             if (s.Length > len)
10                 s = s.Substring(0, len) + "...";
11             return s;
12         }