全角转半角、半角转全角C#代码

　　 /// <summary>
    /// 全角半角的相互转换
    /// </summary>
    public class ConvertDBCAndSBC
    {
        /// <summary>半角转成全角
        /// 半角空格32,全角空格12288
        /// 其他字符半角33~126,其他字符全角65281~65374,相差65248
        /// </summary>
        /// <param name="input"></param>
        /// <returns></returns>
        public static string DBCToSBC(string input)
        {
            char[] cc = input.ToCharArray();
            for (int i = 0; i < cc.Length; i++)
            {
                if (cc[i] == 32)
                {
                    // 表示空格
                    cc[i] = (char) 12288;
                    continue;
                }
                if (cc[i] < 127 && cc[i] > 32)
                {
                    cc[i] = (char) (cc[i] + 65248);
                }
            }
            return new string(cc);
        }

        /// <summary>全角转半角
        /// 半角空格32,全角空格12288
        /// 其他字符半角33~126,其他字符全角65281~65374,相差65248
        /// </summary>
        /// <param name="input"></param>
        /// <returns></returns>
        public static string SBCToDBC(string input)
        {
            char[] cc = input.ToCharArray();
            for (int i = 0; i < cc.Length; i++)
            {
                if (cc[i] == 12288)
                {
                    // 表示空格
                    cc[i] = (char) 32;
                    continue;
                }
                if (cc[i] > 65280 && cc[i] < 65375)
                {
                    cc[i] = (char) (cc[i] - 65248);
                }

            }
            return new string(cc);
        }
    }