c# 中文转拼音without CJK

public class PinYinUtils{ private static readonly Dictionary<string, string> PinYinDict = new Dictionary<string, string> { {"猿", "YUAN"} // 等............ }; /// <summary> /// Return to the first letter /// </summary> /// <param name="word">Chinese word</param> /// <example> /// GetFirstPinyinChar("张三") /// will return "Z" /// Can be used for address book index and so on /// </example> /// <returns></returns> public static string GetFirstPinyinChar(string word) { if (word.Length == 0) return "#"; var firstLetter = word[0].ToString(); if (PinYinDict.ContainsKey(firstLetter)) {  return PinYinDict[firstLetter]; } return firstLetter; } /// <summary> /// return the chinese char's pinyin /// </summary> /// <param name="chineseChar"></param> /// <example> /// GetPinYin('福') /// will return "FU" /// </example> /// <returns></returns> public static string GetPinYin(char chineseChar) { var str = chineseChar.ToString(); if (PinYinDict.ContainsKey(str)) {  return PinYinDict[str]; } return null; } /// <summary> /// Get the phonetic abbreviation for Chinese char /// </summary> /// <param name="chineseChar"></param> /// <example> /// GetShortPinYin('福') /// will return "F" /// </example> /// <returns></returns> public static string GetShortPinYin(char chineseChar) { var str = chineseChar.ToString(); if (PinYinDict.ContainsKey(str)) {  var first = PinYinDict[str].FirstOrDefault();  if (first == 0) return null;  return first.ToString(); } return null; }}