C# 获取简体繁体汉字首字母

需要 ChnCharInfo.dll。

代码如下：

using System;
using Microsoft.International.Converters.PinYinConverter;
namespace Empty
{
    public class ChineseCharOp
    {
        /// <summary>
        /// 获取字符串首字拼音首字母 用于好友列表排序
        /// </summary>
        /// <param name="str"></param>
        /// <returns></returns>
        public static string GetTextFirstPinYin(string str)
        {
            if (string.IsNullOrEmpty(str))
            {
                return null;
            }

            char obj = str[0];
            try
            {
                ChineseChar chineseChar = new ChineseChar(obj);
                string t = chineseChar.Pinyins[0].ToString();
                return t.Substring(0, 1);
            }
            catch
            {
                return null;
            }
        }


        /// <summary>
        /// 获取全拼音
        /// </summary>
        /// <param name="str"></param>
        /// <returns></returns>
        public static string GetTextPinYin(string str)
        {
            if (string.IsNullOrEmpty(str))
            {
                return null;
            }

            string strTemp = "";
            for (int i = 0; i < str.Length; i++)
            {
                char obj = str[i];
                try
                {
                    ChineseChar chineseChar = new ChineseChar(obj);
                    string t = chineseChar.Pinyins[0].ToString();
                    t = System.Text.RegularExpressions.Regex.Replace(t, @"\d", "");  // 正则表达 去掉拼音中带有的数字
                    strTemp += t;
                    strTemp += " ";
                }
                catch
                {
                    // 是否显示特殊字符
                    if (true)
                    {
                        strTemp += obj;
                        strTemp += " ";
                    }
                }
            }

            return strTemp;
        }
    }

    class Program
    {
        static void Main(string[] args)
        {
            string[] arrStr = new string[]
            {
                "简体字","體-繁に体","b字母","#符号","に日本语",""
            };

            Console.WriteLine("******************************************************************");
            foreach (var s in arrStr)
            {
                string strTemp = ChineseCharOp.GetTextPinYin(s);
                Console.WriteLine("汉全字：{0}\n头字音：{1}\n", s, !string.IsNullOrEmpty(strTemp) ? strTemp : "IsEmptyOrNull");
            }
            Console.WriteLine("******************************************************************");
            foreach (var s in arrStr)
            {
                string strTemp = ChineseCharOp.GetTextFirstPinYin(s);
                Console.WriteLine("汉全字：{0}\n全拼音：{1}\n", s, !string.IsNullOrEmpty(strTemp) ? strTemp : "IsEmptyOrNull");
            }
            Console.WriteLine("******************************************************************");
            Console.ReadKey();
        }
    }
}

运行结果：