线程问题 小弟 新手大家帮下忙把

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Threading;namespace ThreadExample4
{
/// <summary>
/// Summary description for Form1.
/// </summary>
public class Form1 : System.Windows.Forms.Form
{
        private System.Windows.Forms.ListBox listBox1;
        private System.Windows.Forms.Button button1;
        private System.Windows.Forms.Button button2;
        private System.Windows.Forms.Button button3;
        private System.Windows.Forms.Button button4;        private Thread t; /// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.Container components = null; public Form1()
{
//
// Required for Windows Form Designer support
//
InitializeComponent(); //
// TODO: Add any constructor code after InitializeComponent call
//
            Sample st = new Sample(listBox1);            // 创建Thread对象
            t = new Thread(new ThreadStart(st.work));
} /// <summary>
/// Clean up any resources being used.
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null) 
{
components.Dispose();
}
}
base.Dispose( disposing );
} #region Windows Form Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
            this.button1 = new System.Windows.Forms.Button();
            this.button4 = new System.Windows.Forms.Button();
            this.listBox1 = new System.Windows.Forms.ListBox();
            this.button2 = new System.Windows.Forms.Button();
            this.button3 = new System.Windows.Forms.Button();
            this.SuspendLayout();
            // 
            // button1
            // 
            this.button1.Anchor = System.Windows.Forms.AnchorStyles.Bottom;
            this.button1.Location = new System.Drawing.Point(43, 250);
            this.button1.Name = "button1";
            this.button1.Size = new System.Drawing.Size(62, 22);
            this.button1.TabIndex = 1;
            this.button1.Text = "启动线程";
            this.button1.Click += new System.EventHandler(this.button1_Click);
            // 
            // button4
            // 
            this.button4.Anchor = System.Windows.Forms.AnchorStyles.Bottom;
            this.button4.Location = new System.Drawing.Point(263, 250);
            this.button4.Name = "button4";
            this.button4.Size = new System.Drawing.Size(62, 22);
            this.button4.TabIndex = 4;
            this.button4.Text = "停止线程";
            this.button4.Click += new System.EventHandler(this.button4_Click);
            // 
            // listBox1
            // 
            this.listBox1.Anchor = ((System.Windows.Forms.AnchorStyles)((((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom)
                        | System.Windows.Forms.AnchorStyles.Left)
                        | System.Windows.Forms.AnchorStyles.Right)));
            this.listBox1.Location = new System.Drawing.Point(7, 7);
            this.listBox1.Name = "listBox1";
            this.listBox1.Size = new System.Drawing.Size(378, 212);
            this.listBox1.TabIndex = 0;
            // 
            // button2
            // 
            this.button2.Anchor = System.Windows.Forms.AnchorStyles.Bottom;
            this.button2.Location = new System.Drawing.Point(116, 250);
            this.button2.Name = "button2";
            this.button2.Size = new System.Drawing.Size(63, 22);
            this.button2.TabIndex = 2;
            this.button2.Text = "挂起线程";
            this.button2.Click += new System.EventHandler(this.button2_Click);
            // 
            // button3
            // 
            this.button3.Anchor = System.Windows.Forms.AnchorStyles.Bottom;
            this.button3.Location = new System.Drawing.Point(190, 250);
            this.button3.Name = "button3";
            this.button3.Size = new System.Drawing.Size(62, 22);
            this.button3.TabIndex = 3;
            this.button3.Text = "恢复线程";
            this.button3.Click += new System.EventHandler(this.button3_Click);
            // 
            // Form1
            // 
            this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
            this.ClientSize = new System.Drawing.Size(392, 277);
            this.Controls.Add(this.button4);
            this.Controls.Add(this.button3);
            this.Controls.Add(this.button2);
            this.Controls.Add(this.button1);
            this.Controls.Add(this.listBox1);
            this.Name = "Form1";
            this.Text = "挂起/恢复线程";
            this.ResumeLayout(false);        }
#endregion /// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main() 
{
Application.Run(new Form1());
}        private void button1_Click(object sender, System.EventArgs e)
        {
            t.Start();
            button1.Enabled = false;
        }
        public void SetText(string text)
        {
            // InvokeRequired required compares the thread ID of the
            // calling thread to the thread ID of the creating thread.
            // If these threads are different, it returns true.
            if (this.listBox1.InvokeRequired)
            {
                setListBox d = new setListBox(SetText);
                this.Invoke(d, new object[] { text });
            }
            else
            {                this.listBox1.Items.Add(text);
                button1.Enabled = false;
            }
        }        private void button4_Click(object sender, System.EventArgs e)
        {
            if(t.IsAlive & t.ThreadState == ThreadState.Running)
            {
                t.Abort();
                button2.Enabled = false;
                button3.Enabled = false;
                button4.Enabled = false;
            }
        }        private void button2_Click(object sender, System.EventArgs e)
        {
            if(t.ThreadState == ThreadState.Running)
            {
                t.Suspend();
                button2.Enabled = false;
                button3.Enabled = true;
            }
        }        private void button3_Click(object sender, System.EventArgs e)
        {
            if(t.ThreadState == ThreadState.Suspended)
            {
                t.Resume();
                button2.Enabled = true;
                button3.Enabled = false;
            }
        }
}    public class Sample
    {
        private System.Windows.Forms.ListBox listBox1;        public Sample(System.Windows.Forms.ListBox a)
        {
            this.listBox1 = a;
        }        public void work()
        {
            while(true)
            {
                listBox1.Items.Add("Sample的work线程在运行");
            }
        }
    }
}
这是以前版本的  线程启动的  挂起 停指的 例子在VS2005下  listBox1.Items.Add("Sample的work线程在运行");说这里不能跨窗体操作  要用 INVOKE什么的  
MSDN上给的例子是一个类内部 的例子   
但是想上面那样的 怎么改呢   万分感觉各位老大  小弟新手  学到线程这里有点看不明白了  
主要没VS2005的实例代码 可以学  用的都是1。0 1。1的  哎