C#生成加密的16位随机数的代码

using System.Security.Cryptography;
using System.IO;
class Program 
{ 
  static void Main(string[] args) 
  { 
      string path = @"C:AAAA16.txt"; 
      RandomNumberGenerator randgen = new RNGCryptoServiceProvider(); 
      byte[] data = new byte[8]; 
      using (StreamWriter sw = new StreamWriter(path, true)) 
      { 
          for (int i = 0; i < 1000; i++) 
          { 
    randgen.GetBytes(data); 
    sw.Write(Math.Abs(BitConverter.ToInt64(data, 0)).ToString().Substring(0, 16) + "  "); 
          } 
      }          
      Console.ReadLine(); 
  } 
}