字符串反转操作

/// <summary>

        /// 字符串的反转(用栈实现)

        /// </summary>

        /// <param name="str">要反转的字符串</param>

        /// <returns></returns>

        public static string Reverse(string str)

        {

            byte[] byteStr = System.Text.Encoding.ASCII.GetBytes(str);

            Stack<byte> stack = new Stack<byte>();

 

            for (int i = 0; i < byteStr.Length; i++)

            {

                stack.Push(byteStr[i]);

            }

            byteStr = stack.ToArray();

            return System.Text.Encoding.ASCII.GetString(byteStr);

        }

 

        /// <summary>

        /// 字符串的反转(常规的算法)

        /// </summary>

        /// <param name="str">要反转的字符串</param>

        /// <returns></returns>

        public static string Reverse1(string str)

        {

            byte[] byteStr = System.Text.Encoding.ASCII.GetBytes(str);

            byte b;

            for (int i = 0; i < byteStr.Length/2; i++)

            {

                b = byteStr[i];

                byteStr[i] = byteStr[byteStr.Length - i - 1];

                byteStr[byteStr.Length - i - 1] = b;

            }

            return System.Text.Encoding.ASCII.GetString(byteStr);

        }