C#汉字转拼音

install-package PinYinConverterCore

    public static class PinyinHelper
    {
        /// <summary>
        /// 汉字转拼音/汉字转拼音首字母
        /// </summary>
        /// <param name="chinese"></param>
        /// <returns></returns>
        public static PinyinResult Convert(string chinese)
        {
            var result = new PinyinResult() { Chinese = chinese.Replace(" ", "") };

            var initials = new string[chinese.Length][]; // 存放首字母
            var pinyins = new string[chinese.Length][]; // 存放拼音

            try
            {
                for (int i = 0; i < result.Chinese.Length; i++)
                {
                    if (ChineseChar.IsValidChar(result.Chinese[i]))
                    {
                        var cc = new ChineseChar(result.Chinese[i]);
                        if (cc.Pinyins.Count > 0 && cc.Pinyins[0].Length > 0)
                        {
                            pinyins[i] = cc.Pinyins.ToList().FindAll(item => item != null).ConvertAll(item => item.Substring(0, item.Length - 1).ToLower()).Distinct().ToArray();
                            initials[i] = pinyins[i].ToList().ConvertAll(item => item.Substring(0, 1)).ToArray();
                        }
                    }
                    else
                    {
                        pinyins[i] = new [] { result.Chinese[i].ToString() };
                        initials[i] = new[] { result.Chinese[i].ToString() };
                    }
                }

                // 拼接拼音
                for (int i = 0; i < pinyins.Length - 1; i++)
                {
                    var last = result.Pinyin;
                    result.Pinyin = new List<string>();
                    result.Pinyin.AddRange(JoinPinyin(last.Count == 0 ? pinyins[i] : last.ToArray(), pinyins[i + 1]));
                }

                // 拼接拼音
                for (int i = 0; i < initials.Length - 1; i++)
                {
                    var last = result.Initial;
                    result.Initial = new List<string>();
                    result.Initial.AddRange(JoinInitial(last.Count == 0 ? initials[i] : last.ToArray(), initials[i + 1]));
                }
                result.Initial = result.Initial.Distinct().ToList();
                result.Pinyin = result.Pinyin.Distinct().ToList();
                result.Success = true;
            }
            catch (Exception)
            {
                result.Success = false;
            }

            return result;
        }

        /// <summary>
        /// 拼接拼音
        /// </summary>
        /// <param name="words1"></param>
        /// <param name="words2"></param>
        /// <returns></returns>
        private static List<string> JoinPinyin(string[] words1, string[] words2)
        {
            var pinyins = new List<string>();
            if (words1 == null && words2 != null)
            {
                foreach (var w2 in words2)
                {
                    pinyins.Add(w2);
                }
            }
            if (words1 != null && words2 == null)
            {
                foreach (var w1 in words1)
                {
                    pinyins.Add(w1);
                }
            }
            if (words1 != null && words2 != null)
            {
                foreach (var w1 in words1)
                {
                    foreach (var w2 in words2)
                    {
                        pinyins.Add(w1 + w2);
                    }
                }
            }
            return pinyins;
        }

        /// <summary>
        /// 拼接首字母
        /// </summary>
        /// <param name="words1"></param>
        /// <param name="words2"></param>
        /// <returns></returns>
        private static List<string> JoinInitial(string[] words1, string[] words2)
        {
            var initials = new List<string>();
            if (words1 == null && words2 != null)
            {
                foreach (var w2 in words2)
                {
                    initials.Add(w2);
                }
            }
            if (words1 != null && words2 == null)
            {
                foreach (var w1 in words1)
                {
                    initials.Add(w1);
                }
            }
            if (words1 != null && words2 != null)
            {
                foreach (var w1 in words1)
                {
                    foreach (var w2 in words2)
                    {
                        initials.Add(w1 + w2);
                    }
                }
            }
            return initials;
        }
    }

    public class PinyinResult
    {
        /// <summary>
        /// 转换结果
        /// </summary>
        public bool Success { get; set; }

        /// <summary>
        /// 汉字
        /// </summary>
        public string Chinese { get; set; }

        /// <summary>
        /// 拼音
        /// </summary>
        public List<string> Pinyin { get; set; } = new List<string>();

        /// <summary>
        /// 首字母
        /// </summary>
        public List<string> Initial { get; set; } = new List<string>();
    }
}