真的了解 随机数吗？ C# Random

using System;
using System.Collections.Generic;
using System.Linq;

public class Program
{
  public static void Main()
  {
    var PinCode = new Random().Next(100000, 999999).ToString();
      Console.WriteLine(PinCode);
     PinCode = new Random().Next(100000, 999999).ToString();
      Console.WriteLine(PinCode);
     PinCode = new Random().Next(100000, 999999).ToString();
      Console.WriteLine(PinCode);
     PinCode = new Random().Next(100000, 999999).ToString();
      Console.WriteLine(PinCode);
     PinCode = new Random().Next(100000, 999999).ToString();
      Console.WriteLine(PinCode);
     PinCode = new Random().Next(100000, 999999).ToString();
      Console.WriteLine(PinCode);
     PinCode = new Random().Next(100000, 999999).ToString();
      Console.WriteLine(PinCode);

    var r =new Random();

      Console.WriteLine("***********************");
     PinCode =  r.Next(100000, 999999).ToString();
      Console.WriteLine(PinCode);
     PinCode =  r.Next(100000, 999999).ToString();
      Console.WriteLine(PinCode);
     PinCode =  r.Next(100000, 999999).ToString();
      Console.WriteLine(PinCode);
     PinCode =  r.Next(100000, 999999).ToString();
      Console.WriteLine(PinCode);
      Console.WriteLine("***********************");
    
       r =new Random(Guid.NewGuid().GetHashCode());
    
     PinCode = new Random(Guid.NewGuid().GetHashCode()).Next(100000, 999999).ToString();
      Console.WriteLine(PinCode);
     PinCode =  new Random(Guid.NewGuid().GetHashCode()).Next(100000, 999999).ToString();
      Console.WriteLine(PinCode);
     PinCode =  new Random(Guid.NewGuid().GetHashCode()).Next(100000, 999999).ToString();
      Console.WriteLine(PinCode);
     PinCode =  new Random(Guid.NewGuid().GetHashCode()).Next(100000, 999999).ToString();
      Console.WriteLine(PinCode);
  }

}

运行结果:

523298

523298

523298

523298

523298

953115

953115

***********************

953115

768308

355736

315258

***********************

595735

616488

287093

772007