C#把汉字转换成拼音

using System;
using System.Data;
using System.Configuration;
using System.Web;

using Microsoft.International.Converters.PinYinConverter;
using System.Collections.ObjectModel;
using System.Text;
using System.Text.RegularExpressions;
using Microsoft.International.Converters.TraditionalChineseToSimplifiedConverter;

/// <summary>
/// 汉字转拼音类
/// </summary>
public class PinYinConver
{
public PinYinConver()
{
//
// TODO: 在此处添加构造函数逻辑
//
}

/// <summary>
/// 把汉字转换成拼音(全拼)
/// by
/// </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)
{
if (string.IsNullOrEmpty(hzString))
return "";

char[] noWChar = hzString.ToCharArray();
string txt = "";
for (int j = 0; j < noWChar.Length; j++)
{
if (IsValidChar(noWChar[j]))
{
txt += ConvertToFirstPinYin(noWChar[j].ToString());
}
}
return txt;
}
public static bool IsValidChar(char ch)
{
return ChineseChar.IsValidChar(ch);
}
public static string ConvertToFirstPinYin(string chineseStr)
{
if (chineseStr == null)
return "";

char[] charArray = chineseStr.ToCharArray();
StringBuilder sb = new StringBuilder();
foreach (char c in charArray)
{
ChineseChar chineseChar = new ChineseChar(c);
ReadOnlyCollection<string> pyColl = chineseChar.Pinyins;
foreach (string py in pyColl)
{
if (py != null)
{
sb.Append(py.Substring(0, 1));
break;
}
}
}
return sb.ToString();
}
public static string ConvertToPinYin(string chineseStr, bool includeTone)
{
if (chineseStr == null)
throw new ArgumentNullException("chineseStr");

char[] charArray = chineseStr.ToCharArray();
StringBuilder sb = new StringBuilder();
foreach (char c in charArray)
{
ChineseChar chineseChar = new ChineseChar(c);
ReadOnlyCollection<string> pyColl = chineseChar.Pinyins;
foreach (string py in pyColl)
{
if (py == null)
{
continue;
}
sb.Append(py);
sb.Append("&");

}
sb.Remove(sb.Length-1,1);
}

if (!includeTone)
{
StringBuilder sb2 = new StringBuilder();
foreach (char c in sb.ToString())
{
if (!char.IsNumber(c))
sb2.Append(c);
}
return sb2.ToString();
}

return sb.ToString();
}
}