多线程中变量的内存分配

using System;
using System.Collections.Generic;
using System.Text;
using System.Threading;
using System.Diagnostics;
namespace TestMultiThread
{
    class Program
    {
        pp s = new pp();
        static void Main(string[] args)
        {
            Program dd = new Program();
            Thread th;
            for (int i = 0; i < 10; i++)
            {
                th= new Thread(new ThreadStart(dd.Test));
                th.Name = i.ToString();
                th.Start();
                Thread.Sleep(10);
            }
            Console.WriteLine("wait 3 seconds");
            Console.ReadKey();
        }
        public void Test()
        {
            Int32 i = 0;
            i++;
            Console.WriteLine("name:{0}/I vaule:{1}", Thread.CurrentThread.Name,i.ToString());
            s.ps();
        }
    }
    class pp
    { 
        public void ps()
        {
            Int32 i=0;
            Thread.Sleep(3000);
            i++;
            Console.WriteLine("ps:name:{0}/i:{1}", Thread.CurrentThread.Name,i.ToString());
        }
    }
}