将汉字转化为拼音，正则表达式和得到汉字的Unicode编码

一：上图，不清楚的看代码注解，很详细了

二：具体代码

窗体代码

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Text.RegularExpressions;

namespace ChineseToABC
{
    public partial class Frm_Main : Form
    {
        public Frm_Main()
        {
            InitializeComponent();
        }

        private void txt_Chinese_TextChanged(object sender, EventArgs e)
        {
            txt_PinYIn.Text = //调用拼音类的GetABC方法得到拼音字符串
                new PinYin().GetABC(txt_Chinese.Text);
        }
    }
}

拼音类代码

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using System.Windows.Forms;

public class PinYin
{
    //定义拼音区编码数组
    private static int[] getValue = new int[]
            {
                -,-,-,-,-,-,-,-,-,-,-,-,
                -,-,-,-,-,-,-,-,-,-,-,-,
                -,-,-,-,-,-,-,-,-,-,-,-,
                -,-,-,-,-,-,-,-,-,-,-,-,
                -,-,-,-,-,-,-,-,-,-,-,-,
                -,-,-,-,-,-,-,-,-,-,-,-,
                -,-,-,-,-,-,-,-,-,-,-,-,
                -,-,-,-,-,-,-,-,-,-, -,-,
                -,-,-,-,-,-,-,-,-,-,-,-,
                -,-,-,-,-,-,-,-,-,-,-,-,
                -,-,-,-,-,-,-,-,-,-,-,-,
                -,-,-,-,-,-,-,-,-,-,-,-,
                -,-,-,-,-,-,-,-,-,-,-,-,
                -,-,-,-,-,-,-,-,-,-,-,-,
                -,-,-,-,-,-,-,-,-,-,-,-,
                -,-,-,-,-,-,-,-,-,-,-,-,
                -,-,-,-,-,-,-,-,-,-,-,-,
                -,-,-,-,-,-,-,-,-,-,-,-,
                -,-,-,-,-,-,-,-,-,-,-,-,
                -,-,-,-,-,-,-,-,-,-,-,-,
                -,-,-,-,-,-,-,-,-,-,-,-,
                -,-,-,-,-,-,-,-,-,-,-,-,
                -,-,-,-,-,-,-,-,-,-,-,-,
                -,-,-,-,-,-,-,-,-,-,-,-,
                -,-,-,-,-,-,-,-,-,-,-,-,
                -,-,-,-,-,-,-,-,-,-,-,-,
                -,-,-,-,-,-,-,-,-,-,-,-,
                -,-,-,-,-,-,-,-,-,-,-,-,
                -,-,-,-,-,-,-,-,-,-,-,-,
                -,-,-,-,-,-,-,-,-,-,-,-,
                -,-,-,-,-,-,-,-,-,-,-,-,
                -,-,-,-,-,-,-,-,-,-,-,-,
                -,-,-,-,-,-,-,-,-,-,-,-
            };
    //定义拼音数组
    private static string[] getStr = new string[]
            {
                "A","Ai","An","Ang","Ao","Ba","Bai","Ban","Bang","Bao","Bei","Ben",
                "Beng","Bi","Bian","Biao","Bie","Bin","Bing","Bo","Bu","Ba","Cai","Can",
                "Cang","Cao","Ce","Ceng","Cha","Chai","Chan","Chang","Chao","Che","Chen","Cheng",
                "Chi","Chong","Chou","Chu","Chuai","Chuan","Chuang","Chui","Chun","Chuo","Ci","Cong",
                "Cou","Cu","Cuan","Cui","Cun","Cuo","Da","Dai","Dan","Dang","Dao","De",
                "Deng","Di","Dian","Diao","Die","Ding","Diu","Dong","Dou","Du","Duan","Dui",
                "Dun","Duo","E","En","Er","Fa","Fan","Fang","Fei","Fen","Feng","Fo",
                "Fou","Fu","Ga","Gai","Gan","Gang","Gao","Ge","Gei","Gen","Geng","Gong",
                "Gou","Gu","Gua","Guai","Guan","Guang","Gui","Gun","Guo","Ha","Hai","Han",
                "Hang","Hao","He","Hei","Hen","Heng","Hong","Hou","Hu","Hua","Huai","Huan",
                "Huang","Hui","Hun","Huo","Ji","Jia","Jian","Jiang","Jiao","Jie","Jin","Jing",
                "Jiong","Jiu","Ju","Juan","Jue","Jun","Ka","Kai","Kan","Kang","Kao","Ke",
                "Ken","Keng","Kong","Kou","Ku","Kua","Kuai","Kuan","Kuang","Kui","Kun","Kuo",
                "La","Lai","Lan","Lang","Lao","Le","Lei","Leng","Li","Lia","Lian","Liang",
                "Liao","Lie","Lin","Ling","Liu","Long","Lou","Lu","Lv","Luan","Lue","Lun",
                "Luo","Ma","Mai","Man","Mang","Mao","Me","Mei","Men","Meng","Mi","Mian",
                "Miao","Mie","Min","Ming","Miu","Mo","Mou","Mu","Na","Nai","Nan","Nang",
                "Nao","Ne","Nei","Nen","Neng","Ni","Nian","Niang","Niao","Nie","Nin","Ning",
                "Niu","Nong","Nu","Nv","Nuan","Nue","Nuo","O","Ou","Pa","Pai","Pan",
                "Pang","Pao","Pei","Pen","Peng","Pi","Pian","Piao","Pie","Pin","Ping","Po",
                "Pu","Qi","Qia","Qian","Qiang","Qiao","Qie","Qin","Qing","Qiong","Qiu","Qu",
                "Quan","Que","Qun","Ran","Rang","Rao","Re","Ren","Reng","Ri","Rong","Rou",
                "Ru","Ruan","Rui","Run","Ruo","Sa","Sai","San","Sang","Sao","Se","Sen",
                "Seng","Sha","Shai","Shan","Shang","Shao","She","Shen","Sheng","Shi","Shou","Shu",
                "Shua","Shuai","Shuan","Shuang","Shui","Shun","Shuo","Si","Song","Sou","Su","Suan",
                "Sui","Sun","Suo","Ta","Tai","Tan","Tang","Tao","Te","Teng","Ti","Tian",
                "Tiao","Tie","Ting","Tong","Tou","Tu","Tuan","Tui","Tun","Tuo","Wa","Wai",
                "Wan","Wang","Wei","Wen","Weng","Wo","Wu","Xi","Xia","Xian","Xiang","Xiao",
                "Xie","Xin","Xing","Xiong","Xiu","Xu","Xuan","Xue","Xun","Ya","Yan","Yang",
                "Yao","Ye","Yi","Yin","Ying","Yo","Yong","You","Yu","Yuan","Yue","Yun",
                "Za", "Zai","Zan","Zang","Zao","Ze","Zei","Zen","Zeng","Zha","Zhai","Zhan",
                "Zhang","Zhao","Zhe","Zhen","Zheng","Zhi","Zhong","Zhou","Zhu","Zhua","Zhuai","Zhuan",
                "Zhuang","Zhui","Zhun","Zhuo","Zi","Zong","Zou","Zu","Zuan","Zui","Zun","Zuo"
           };
    /// <summary>
    /// 将汉字转换拼音的方法
    /// </summary>
    /// <param name="str">汉字字符串</param>
    /// <returns>拼音字符串</returns>
    public string GetABC(string str)
    {
        Regex reg = new Regex("^[\u4e00-\u9fa5]$");//实力化一个正则表达式,验证输入是否为汉字
        byte[] arr = new byte[];//定义字节数组,//每个汉字为2字节
        string pystr = "";//定义字符串变量用于返回拼音
        char[] mChar = str.ToCharArray();//获取汉字对应的字符数组//将此实例中的字符复制到 Unicode 字符数组。
        return GetStr(mChar,pystr,reg,arr);//返回获取到的汉字拼音
    }
    /// <summary>
    /// 拼音字符串
    /// </summary>
    /// <param name="mChar">汉字对应的字符数组</param>
    /// <param name="pystr">用于返回拼音的字符串数组</param>
    /// <param name="reg">汉字的正则表达式</param>
    /// <param name="arr">定义的字节数组</param>
    /// <returns></returns>
    private string GetStr(char[] mChar,string pystr,Regex reg,byte[] arr)
    {
        int asc = , M1 = , M2 = ;
        for (int j = ; j < mChar.Length; j++)
        {
            if (reg.IsMatch(mChar[j].ToString()))//如果输入的是汉字
            {
                //根据系统默认编码得到字节码
                arr = System.Text.Encoding.Default.GetBytes(mChar[j].ToString());
                M1 = (short)(arr[]);//取字节1
                M2 = (short)(arr[]);//取字节2
                //计算汉字的编码,第一个字节移8位后与第二个字节相加得到汉字编码,Unicode固定为双字节编码，共可以表示65536个字符 。
                asc = M1 *  + M2 - ;
                if (asc >  && asc < )
                {
                    pystr += mChar[j];
                }
                else
                {
                    switch (asc)
                    {
                        case -:
                            pystr += "Zhen"; break;
                        case -:
                            pystr += "Qian"; break;
                        case -:
                            pystr += "Jia"; break;
                        case -:
                            pystr += "Ge"; break;
                        case -:
                            pystr += "Ga"; break;
                        case -:
                            pystr += "La"; break;
                        case -:
                            pystr += "Chen"; break;
                        case -:
                            pystr += "Mao"; break;
                        case -:
                            pystr += "Mao"; break;
                        case -:
                            pystr += "Die"; break;
                        case -:
                            pystr += "Tian"; break;
                        default:
                            for (int i = (getValue.Length - ); i >= ; i--)
                            {
                                if (getValue[i] <= asc)//判断汉字的拼音区编码是否在指定范围内
                                {
                                    pystr += getStr[i];//如果不超出范围则获取对应的拼音
                                    break;
                                }
                            }
                            break;
                    }
                }
            }
            else//如果不是汉字
            {
                pystr += mChar[j].ToString();//如果不是汉字则返回
            }
        }
        return pystr;
    }

}