using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Threading;
using System.Collections;
namespace @try
{
    public partial class Form1 : Form
    {
        ArrayList al = new ArrayList();       
        public Form1()
        {
            InitializeComponent();
        }
        private void button1_Click(object sender, EventArgs e)
        {
            newThread nt = new newThread(DateTime.Now);
            listBox1.Items.Add(nt.dtback());
            al.Add(nt);
            count++;
        }
        private void listBox1_SelectedIndexChanged(object sender, EventArgs e)
        {
        }
        private void button2_Click(object sender, EventArgs e)
        {
            string s="现在已经启动线程"+count+"个";
            MessageBox.Show(s);
            foreach (newThread nT in al)
            {
                MessageBox.Show(nT.dtback().ToString());                
            }
        }
    }
    public class newThread
    {
        private DateTime dt;
        private Thread chck;
        public DateTime dtback()
        {
            return dt;             
        }
        public ref Thread Threadback()
        { 
            return this.chck;
        }
        public newThread(DateTime t)
        {
            dt = t;
            chck = new Thread(new ThreadStart(Check));
            chck.Start();
        }
        public void Check()
        {
            MessageBox.Show("线程创建时间为:"+this.dt);
        }
    }
}