取得汉字拼音首字母 (asp.net C#)

using System;

using System.Text;

namespace Components

{

/// <summary>

/// 获取简体中文拼音首字母类

/// </summary>

public class CNspellTranslator

{

public CNspellTranslator()

{

}

/// <summary>

/// 获取简体中文字符串拼音首字母

/// </summary>

/// <param name="input">简体中文字符串</param>

/// <returns>拼音首字母</returns>

static public string getSpells(string input)

{

int len = input.Length;

string reVal = "";

for(int i=0;i<len;i++)

{

reVal += getSpell(input.Substring(i,1));

}

return reVal;

}

/// <summary>

/// 获取一个简体中文字的拼音首字母

/// </summary>

/// <param name="cn">一个简体中文字</param>

/// <returns>拼音首字母</returns>

static public string getSpell(string cn)

{

byte[] arrCN = Encoding.Default.GetBytes(cn);

if(arrCN.Length > 1)

{

int area = (short)arrCN[0];

int pos = (short)arrCN[1];

int code = (area<<8) + pos;

int[] areacode =
{45217,45253,45761,46318,46826,47010,47297,47614,48119,48119,49062,49324,49896,50371,50614,50622,50906,51387,51446,52218,52698,52698,52698,52980,53689,54481};

for(int i=0;i<26;i++)

{

int max = 55290;

if(i != 25) max = areacode[i+1];

if(areacode[i]<=code && code<max)

{

return Encoding.Default.GetString(new byte[]{(byte)(65+i)});

}

}

return "?";

}

else return cn;

}

}

}