（一）将汉字转化成全拼
代码：
private void button1_Click(object sender, EventArgs e)
{
this.textBox2.Text = Hz2Py.Convert(this.textBox1.Text);
}
汉字转拼音类：
/// <summary>
/// 汉字转拼音类
/// </summary>
public class Hz2Py
{
private static int[] pyValue = new int[]
{
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-, -,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-
}; private static string[] pyName = 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>
/// 把汉字转换成拼音(全拼)
/// </summary>
/// <param name="hzString">汉字字符串</param>
/// <returns>转换后的拼音(全拼)字符串</returns>
public static string Convert(string hzString)
{
// 匹配中文字符
Regex regex = new Regex("^[\u4e00-\u9fa5]$");
byte[] array = new byte[];
string pyString = "";
int chrAsc = ;
int i1 = ;
int i2 = ;
char[] noWChar = hzString.ToCharArray(); for (int j = ; j < noWChar.Length; j++)
{
// 中文字符
if (regex.IsMatch(noWChar[j].ToString()))
{
array = System.Text.Encoding.Default.GetBytes(noWChar[j].ToString());
i1 = (short)(array[]);
i2 = (short)(array[]);
chrAsc = i1 * + i2 - ;
if (chrAsc > && chrAsc < )
{
pyString += noWChar[j];
}
else
{
// 修正部分文字
if (chrAsc == -) // 修正“圳”字
pyString += "Zhen";
else
{
for (int i = (pyValue.Length - ); i >= ; i--)
{
if (pyValue[i] <= chrAsc)
{
pyString += pyName[i];
break;
}
}
}
}
}
// 非中文字符
else
{
pyString += noWChar[j].ToString();
}
}
return pyString;
}
}
补充：一些生僻字转不了，比如：“睿”和“罡”字等。
（二）将汉字转化成首字母序列
return "M";
}
else if ((iCnChar >= ) && (iCnChar <= ))
{
return "N";
}
else if ((iCnChar >= ) && (iCnChar <= ))
{
return "O";
}
else if ((iCnChar >= ) && (iCnChar <= ))
{
return "P";
}
else if ((iCnChar >= ) && (iCnChar <= .))
{
return "Q";
}
else if ((iCnChar >= ) && (iCnChar <= ))
{
return "R";
}
else if ((iCnChar >= ) && (iCnChar <= ))
{
return "S";
}
else if ((iCnChar >= ) && (iCnChar <= ))
{
return "T";
}
else if ((iCnChar >= ) && (iCnChar <= ))
{
return "W";
}
else if ((iCnChar >= ) && (iCnChar <= ))
{
return "X";
}
else if ((iCnChar >= ) && (iCnChar <= ))
{
return "Y";
}
else if ((iCnChar >= ) && (iCnChar <= ))
{
return "Z";
}
else return ("?");
}