C# 判断句子中是否含有中文

        /// <summary>        /// 判断句子中是否含有中文     宁夏大学 张冬 zd4004.blog.163.com        /// </summary>        /// <param >字符串</param>         public bool WordsIScn(string words)        {            string TmmP;

            for (int i = 0; i < words.Length; i++)            {                TmmP = words.Substring(i, 1);

                byte[] sarr = System.Text.Encoding.GetEncoding("gb2312").GetBytes(TmmP);

                if (sarr.Length == 2)                {                    return true;                }            }            return false;        }