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 1 public class PinYinConverterHelp
 2     {
 3         public static PingYinModel GetTotalPingYin(string str)
 4         {
 5             var chs = str.ToCharArray();
 6             //記錄每個漢字的全拼
 7             Dictionary<int, List<string>> totalPingYins = new Dictionary<int, List<string>>();
 8             for (int i = 0; i < chs.Length; i++)
 9             {
10                 var pinyins = new List<string>();
11                 var ch = chs[i];
12                 //是否是有效的漢字
13                 if (ChineseChar.IsValidChar(ch))
14                 {
15                     ChineseChar cc = new ChineseChar(ch);
16                     pinyins = cc.Pinyins.Where(p => !string.IsNullOrWhiteSpace(p)).ToList();
17                 }
18                 else
19                 {
20                     pinyins.Add(ch.ToString());
21                 }
22 
23                 //去除聲調，轉小寫
24                 pinyins = pinyins.ConvertAll(p => Regex.Replace(p, @"\d", "").ToLower());
25                 //去重
26                 pinyins = pinyins.Where(p => !string.IsNullOrWhiteSpace(p)).Distinct().ToList();
27                 if (pinyins.Any())
28                 {
29                     totalPingYins[i] = pinyins;
30                 }
31             }
32             PingYinModel result = new PingYinModel() {
33                 TotalPingYin=new List<string>(),
34                 FirstPingYin=new List<string>()
35             };
36             foreach (var pinyins in totalPingYins)
37             {
38                 var items = pinyins.Value;
39                 if (result.TotalPingYin.Count <= 0)
40                 {
41                     result.TotalPingYin = items;
42                     result.FirstPingYin = items.ConvertAll(p => p.Substring(0, 1)).Distinct().ToList();
43                 }
44                 else
45                 {
46                     ////全拼循環匹配（根據個人需求來選擇此代碼）
47                     //var newTotalPingYins = new List<string>();
48                     //foreach (var totalPingYin in result.TotalPingYin)
49                     //{
50                     //    newTotalPingYins.AddRange(items.Select(item => totalPingYin + item));
51                     //}
52                     //newTotalPingYins = newTotalPingYins.Distinct().ToList();
53                     //result.TotalPingYin = newTotalPingYins;
54 
55                     //首字母循環匹配
56                     var newFirstPingYins = new List<string>();
57                     foreach (var firstPingYin in result.FirstPingYin)
58                     {
59                         newFirstPingYins.AddRange(items.Select(item => firstPingYin + item.Substring(0, 1)));
60                     }
61                     newFirstPingYins = newFirstPingYins.Distinct().ToList();
62                     result.FirstPingYin = newFirstPingYins;
63                 }
64             }
65             return result;
66         }
67 
68         /// <summary>
69         /// 獲取首字母并轉換成大寫
70         /// </summary>
71         /// <param name="str"></param>
72         /// <returns></returns>
73         public static string GetPingYinFirstUpper(string str)
74         {
75             var output = GetTotalPingYin(str);
76             return string.Join("", output.FirstPingYin.ToArray()).ToUpper();
77         }
78         public class PingYinModel
79         {
80             public List<string> TotalPingYin { get; internal set; }
81             public List<string> FirstPingYin { get; internal set; }
82         }
83 ｝