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C# 拼音通用类
因为项目需求，查找资料并编写了这个拼音通用类。在博客园分享：）
其中的多音字首拼，感觉还是非常实用的。可识别中文、英文和符号
1 using System; 2 using System.Collections.Generic; 3 using System.Collections.ObjectModel; 4 using System.Linq; 5 using System.Text; 6 using Microsoft.International.Converters.PinYinConverter; 7 8 namespace MyConsoleApp 9 { 10 public sealed class PinYin 11 { 12 private PinYin() { } 13 14 /// <summary> 15 /// 获取首拼或全拼。大写 16 /// </summary> 17 /// <param name="chineseString"></param> 18 /// <param name="isFull">true为全拼，false为首拼</param> 19 /// <returns></returns> 20 public static string GetPY(string chineseString, bool isFull) 21 { 22 StringBuilder sb = new StringBuilder(50); 23 foreach (var item in chineseString.ToCharArray()) 24 { 25 if (!ChineseChar.IsValidChar(item)) 26 { 27 sb.Append(item); 28 } 29 else 30 { 31 System.Collections.ObjectModel.ReadOnlyCollection<string> py = new ChineseChar(item).Pinyins; 32 if (py.Count > 0 && py[0].Length > 0) 33 { 34 if (isFull) 35 sb.Append(py[0].Substring(0, py[0].Length - 1)); 36 else 37 sb.Append(py[0][0]); 38 } 39 } 40 } 41 return sb.ToString(); 42 } 43 44 /// <summary> 45 /// 获取首拼和全拼 46 /// </summary> 47 /// <param name="chineseString"></param> 48 /// <param name="pyStr"></param> 49 /// <param name="pyFullStr"></param> 50 public static void GetPY(string chineseString, out string pyStr, out string pyFullStr) 51 { 52 StringBuilder sb = new StringBuilder(50); 53 StringBuilder sbFull = new StringBuilder(50); 54 foreach (var item in chineseString.ToCharArray()) 55 { 56 if (!ChineseChar.IsValidChar(item)) 57 { 58 sb.Append(item); 59 sbFull.Append(item); 60 } 61 else 62 { 63 System.Collections.ObjectModel.ReadOnlyCollection<string> py = new ChineseChar(item).Pinyins; 64 if (py.Count > 0 && py[0].Length > 0) 65 { 66 sbFull.Append(py[0].Substring(0, py[0].Length - 1)); 67 sb.Append(py[0][0]); 68 } 69 } 70 } 71 72 pyStr = sb.ToString(); 73 pyFullStr = sbFull.ToString(); 74 } 75 76 /// <summary> 77 /// 获取首拼(多音字"|"分隔)和全拼 78 /// </summary> 79 /// <param name="chineseString"></param> 80 /// <param name="pyStr"></param> 81 /// <param name="pyFullStr"></param> 82 public static void GetHomoPhonePY(string chineseString, out string pyStr, out string pyFullStr) 83 { 84 StringBuilder sb = new StringBuilder(50); 85 StringBuilder sbFull = new StringBuilder(50); 86 87 char[] chineseCharArray = chineseString.ToCharArray(); 88 Dictionary<int, List<string>> dic = new Dictionary<int, List<string>>(); 89 90 for (int i = 0; i < chineseCharArray.Length; i++) 91 { 92 char item = chineseCharArray[i]; 93 if (!ChineseChar.IsValidChar(item)) 94 { 95 sb.Append(item); 96 sbFull.Append(item); 97 } 98 else 99 {100 ChineseChar chinaChar = new ChineseChar(item);101 ReadOnlyCollection<string> py = chinaChar.Pinyins;102 if (py.Count > 0 && py[0].Length > 0)103 {104 sbFull.Append(py[0].Substring(0, py[0].Length - 1));105 dic.Add(i, py.Where(p => !string.IsNullOrEmpty(p)).Select(p => p[0].ToString()).Distinct().ToList());106 }107 }108 }109 110 OutPutHomoPhone(dic, dic.Keys.Count, 0, "", ref sb);111 112 pyStr = sb.ToString();113 pyFullStr = sbFull.ToString();114 }115 116 /// <summary>117 /// 获取多音字首拼(多音字"|"分隔)118 /// 西门子SIEMENS商标->XMZSIEMENSSB119 /// </summary>120 /// <param name="chineseString"></param>121 /// <returns></returns>122 public static string GetHomoPhonePY(string chineseString)123 {124 StringBuilder sb = new StringBuilder(50);125 126 char[] chineseCharArray = chineseString.ToCharArray();127 Dictionary<int, List<string>> dic = new Dictionary<int, List<string>>();128 129 for (int i = 0; i < chineseCharArray.Length; i++)130 {131 char item = chineseCharArray[i];132 if (!ChineseChar.IsValidChar(item))133 {134 dic.Add(i, new List<string> { item.ToString() });135 }136 else137 {138 ChineseChar chinaChar = new ChineseChar(item);139 ReadOnlyCollection<string> py = chinaChar.Pinyins;140 if (py.Count > 0 && py[0].Length > 0)141 {142 dic.Add(i, py.Where(p => !string.IsNullOrEmpty(p)).Select(p => p[0].ToString()).Distinct().ToList());143 }144 }145 }146 147 OutPutHomoPhone(dic, dic.Keys.Count, 0, "", ref sb);148 149 return sb.ToString();150 }151 152 /// <summary>153 /// 递归出多音字的首拼154 /// </summary>155 /// <param name="dic">多音字字典</param>156 /// <param name="len">字数</param>157 /// <param name="key">字典下标</param>158 /// <param name="parentValue">递归的首拼</param>159 /// <param name="sb">结果对象</param>160 private static void OutPutHomoPhone(161 Dictionary<int, List<string>> dic,162 int len,163 int key,164 string parentValue,165 ref StringBuilder sb)166 {167 if (dic.Keys.Contains(key))168 {169 foreach (string x in dic[key])170 {171 if (dic.Keys.Count - 1 >= key)172 {173 string outString = string.Format("{0}{1}", parentValue, x);174 if (outString.Length == len)175 {176 sb.AppendFormat("{0}|", outString);177 }178 OutPutHomoPhone(dic, len, key + 1, outString, ref sb);179 }180 }181 }182 }183 184 }185 }
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