1  class Program
 2     {
 3         static void Main(string[] args)
 4         {
 5             string strFilePath = @"E:\Demo\Simplifiled_Demo\files\test.txt";
 6 
 7             if (File.Exists(strFilePath))
 8             {
 9 
10                 string strContent = File.ReadAllText(strFilePath, Encoding.UTF8);
11 
12                 foreach (var item in strContent)
13                 {
14                     if (item.Equals(‘帐‘))
15                     {
16                         //简体转繁体；
17                         var ss = "账";
18                         strContent = Regex.Replace(strContent, item.ToString(), ss);
19                         return;
20                     }
21                 }
22                 File.WriteAllText(strFilePath, strContent);
23                 
24                 Console.WriteLine("OK");
25                 Console.ReadKey();
26 
27             }
28         }
29     }