汉字到全拼转换函数

 /// <summary>  
        /// 把汉字转换成拼音(全拼)  
        /// </summary>  
        /// <param name="transName">汉字字符串</param>  
        /// <returns>转换后的拼音(全拼)字符串</returns>  
        public static string GetAllPYLetters(string transName)  
        {  
            // 匹配中文字符  
            Regex regex = new Regex("^[\u4e00-\u9fa5]{1}quot;);  
            byte[] array = new byte[2];  
            string pyString = "";  
            int chrAsc = 0;  
            int i1 = 0;  
            int i2 = 0;  
            char[] noWChar = transName.ToCharArray();  
            for (int j = 0; j < noWChar.Length; j++)  
            {  
                // 中文字符  
                if (regex.IsMatch(noWChar[j].ToString()))  
                {  
                    array = System.Text.Encoding.Default.GetBytes(noWChar[j].ToString());  
                    i1 = (short)(array[0]);  
                    i2 = (short)(array[1]);  
                    chrAsc = i1 * 256 + i2 - 65536;  
                    if (chrAsc > 0 && chrAsc < 160)  
                    {  
                        pyString += noWChar[j];  
                    }  
                    else  
                    {