asp.net 汉字转拼音类

前段时间公司人员反应OA里的汉字拼音首字母不准他们又要用，没办法自己就从网上搜有没有好的，看了很多都是首字母拼不出来或有些字母变为另一个，但最后找了很多还是有一个好用的，暂未发现有不准的。

using System;using System.Collections.Generic;using System.Linq;using System.Text;namespace O.Common{    /// <summary>    /// 汉字转拼音    /// </summary>    public class GetPYString    {        /// <summary>        /// 将一串中文转化为拼音        /// </summary>        /// <param name="strText">指定汉字</param>        /// <returns>拼音首字母 如: 影响：YX</returns>        public static string GetChineseSpell(string strText)        {            if (strText == null || strText.Length == 0)                return strText;            System.Text.StringBuilder myStr = new System.Text.StringBuilder();            foreach (char vChar in strText)            {                if ((vChar >= 'a' && vChar <= 'z') || (vChar >= 'A' && vChar <= 'Z'))                    myStr.Append(char.ToUpper(vChar));                else if ((int)vChar >= 19968 && (int)vChar <= 40869)                {                    myStr.Append(strChineseFirstPY[(int)vChar - 19968]);                }            }            return myStr.ToString();        }        /// <summary>        /// 得到单个汉字拼音的首字母        /// </summary>        /// <param name="strText">指定汉字</param>        /// <returns>如：影响 Y</returns>        public static string GetFirstPinyin(string strText)        {            if (strText == null || strText.Length == 0)                return strText;            string myStr = string.Empty;            char vChar = (strText.ToCharArray())[0];            if ((vChar >= 'a' && vChar <= 'z') || (vChar >= 'A' && vChar <= 'Z'))                myStr = vChar.ToString();            else if ((int)vChar >= 19968 && (int)vChar <= 40869)            {                myStr = strChineseFirstPY[(int)vChar - 19968].ToString();            }            return myStr;        }        /// <summary>        /// 显示第一个汉字的首字母        /// </summary>        /// <param name="str">指定汉字</param>        /// <returns>如：Y影响</returns>        public static string AddFirstPinyin(string str)        {            if (string.IsNullOrEmpty(str)) return string.Empty;            char vChar = (str.ToCharArray())[0];            if ((vChar >= 'a' && vChar <= 'z') || (vChar >= 'A' && vChar <= 'Z'))            {                return str;            }            else if ((int)vChar >= 19968 && (int)vChar <= 40869)            {                string strNew = strChineseFirstPY[(int)vChar - 19968].ToString();                return strNew + str;            }            else            {                return str;            }        }        PRivate static string strChineseFirstPY =                  "YDYQSXMWZSSXJBYMGCCZQPSSQBYCDSCDQLDYLYBSSJGYZZJJFKCCLZDHWDWZJLJPFYYNWJJTMYHZWZHFLZPPQHGSCYYYNJQYXXGJ"                  + "HHSDSJNKKTMOMLCRXYPSNQSECCQZGGLLYJLMYZZSECYKYYHQWJSSGGYXYZYJWWKDJHYCHMYXJTLXJYQBYXZLDWRDJRWYSRLDZJPC"                  + "BZJJBRCFTLECZSTZFXXZHTRQHYBDLYCZSSYMMRFMYQZPWWJJYFCRWFDFZQPYDDWYXKYJAWJFFXYPSFTZYHHYZYSWCJYXSCLCXXWZ"                  + "ZXNBGNNXBXLZSZSBSGPYSYZDHMDZBQBZCWDZZYYTZHBTSYYBZGNTNXQYWQSKBPHHLXGYBFMJEBJHHGQTJCYSXSTKZHLYCKGLYSMZ"                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