List 轉化為逗號鏈接的字符串

        /// <summary>
        /// List<int>轉化為逗號鏈接的字符串
        /// </summary>
        /// <param name="lisFrom"></param>
        /// <returns></returns>
        public static string StringJoinCommaFromList(List<int> lisFrom)
        { 
        return String.Join(",", lisFrom.ConvertAll<string>(new Converter<int, string>(m => m.ToString())).ToArray());
        }