C# 拼音功能扩展

动态链接库支持包下载：
http://note.youdao.com/noteshare?id=8c80d8cdb3160fa447c69db2efd3d794&sub=857AAE85FBFE4CD49328CAF3C4C36E61

class PingYinHelper
    {
        private static Encoding gb2312 = Encoding.GetEncoding("GB2312");

        /// <summary>
        /// 汉字转全拼
        /// </summary>
        /// <param name="strChinese"></param>
        /// <returns></returns>
        public static string ConvertToAllSpell(string strChinese)
        {
            try
            {
                if (strChinese.Length != 0)
                {
                    StringBuilder fullSpell = new StringBuilder();
                    for (int i = 0; i < strChinese.Length; i++)
                    {
                        var chr = strChinese[i];
                        fullSpell.Append(GetSpell(chr));
                    }

                    return fullSpell.ToString().ToLower();
                }
            }
            catch (Exception e)
            {
                Console.WriteLine("全拼转化出错！" + e.Message);
            }

            return string.Empty;
        }

        /// <summary>
        /// 汉字转首字母
        /// </summary>
        /// <param name="strChinese"></param>
        /// <returns></returns>
        public static string GetFirstSpell(string strChinese)
        {
            //NPinyin.Pinyin.GetInitials(strChinese)  有Bug  洺无法识别
            //return NPinyin.Pinyin.GetInitials(strChinese);

            try
            {
                if (strChinese.Length != 0)
                {
                    StringBuilder fullSpell = new StringBuilder();
                    for (int i = 0; i < strChinese.Length; i++)
                    {
                        var chr = strChinese[i];
                        fullSpell.Append(GetSpell(chr)[0]);
                    }

                    return fullSpell.ToString().ToLower();
                }
            }
            catch (Exception e)
            {
                Console.WriteLine("首字母转化出错！" + e.Message);
            }

            return string.Empty;
        }

        private static string GetSpell(char chr)
        {
            ChineseChar chineseChar = new ChineseChar(chr);
            return chineseChar.Pinyins[0].Substring(0, chineseChar.Pinyins[0].Length - 1).ToLower();
        }
    }