第一种方法.简单快速
若是求快，可以用下面这个方法，不需要什么库，直接写就完事
调用GetPYstring ，传入"世界和平"，返回“SJHP”
public static class Helpers{public static String GetPYstring(string str){string temStr = "";foreach (char c in str){if ((int)c > 33 && (int)c <= 126){temStr += c.ToString();}else{temStr += GetPYChar(c.ToString());}}return temStr;}public static String GetPYChar(string c){try{if (c.Equals(" ")){return c;}if (c.Equals("行")){return "x";}byte[] array = new byte[2];array = Encoding.Default.GetBytes(c);int i = (short)(array[0] - '\0') * 256 + ((short)(array[1] - '\0'));if (i < 0xB0A1) return "*";if (i < 0xB0C5) return "a";if (i < 0xB2C1) return "b";if (i < 0xB4EE) return "c";if (i < 0xB6EA) return "d";if (i < 0xB7A2) return "e";if (i < 0xB8C1) return "f";if (i < 0xB9FE) return "g";if (i < 0xBBF7) return "h";if (i < 0xBFA6) return "j";if (i < 0xC0AC) return "k";if (i < 0xC2E8) return "l";if (i < 0xC4C3) return "m";if (i < 0xC5B6) return "n";if (i < 0xC5BE) return "o";if (i < 0xC6DA) return "p";if (i < 0xC8BB) return "q";if (i < 0xC8F6) return "r";if (i < 0xCBFA) return "s";if (i < 0xCDDA) return "t";if (i < 0xCEF4) return "w";if (i < 0xD1B9) return "x";if (i < 0xD4D1) return "y";if (i < 0xD7FA) return "z";return c;}catch (Exception){return c;}}}
缺点：
有些多音字无法正确返回，如传入 中国银行 ，期望返回 ZGYH，实际返回 ZGYX
第二种办法：引入NPinying
使用NuGet，输入Npinying, 可以找到一个叫NPinyinPro的库
public class PingYinHelper{private static Encoding gb2312 = Encoding.GetEncoding("GB2312");/// <summary>/// 汉字转全拼/// </summary>/// <param name="strChinese"></param>/// <returns></returns>public static string ConvertToAllSpell(string strChinese){try{if (strChinese.Length != 0){StringBuilder fullSpell = new StringBuilder();for (int i = 0; i < strChinese.Length; i++){var chr = strChinese[i];fullSpell.Append(GetSpell(chr));}return fullSpell.ToString().ToUpper();}}catch (Exception e){Console.WriteLine("出错！" + e.Message);}return string.Empty;}/// <summary>/// 汉字转首字母/// </summary>/// <param name="strChinese"></param>/// <returns></returns>public static string GetFirstSpell(string strChinese){try{if (strChinese.Length != 0){StringBuilder fullSpell = new StringBuilder();for (int i = 0; i < strChinese.Length; i++){var chr = strChinese[i];fullSpell.Append(GetSpell(chr)[0]);}return fullSpell.ToString().ToUpper();}}catch (Exception e){Console.WriteLine("出错！" + e.Message);}return string.Empty;}private static string GetSpell(char chr){var coverchr = NPinyin.Pinyin.GetPinyin(chr);return coverchr;}}
用法：
var str = PingYinHelper.GetFirstSpell("中国人");var str1 = PingYinHelper.ConvertToAllSpell("中国人");
str=ZGR
str1=ZHONGGUOREN
缺点就是需要引入第三方库，优点是能解析大多数多音字，结果较准确
NpinyingPro.dll下载地址：
链接：/s/1Grd_142IFhWMApJ-7u5wqw
提取码：gkj6
