• 帶引數的建構函式

第一種：Thread(ParameterizedThreadStart)

 private void treeView1_NodeMouseClick()
        {
            try
            {
                TreeNode tn = new TreeNode();
                tn = e.Node;

                Thread th = new Thread(new ParameterizedThreadStart(URLshow));
                th.IsBackground = true
 
;
                th.Start(tn);
            }
            catch (Exception ex) { MessageBox.Show(ex.Message.ToString()); }
        }

        private void URLshow(object tn)
        {
            try
            {
                TreeNode tnn = (TreeNode)tn;
                this.Invoke(new EventHandler(delegate
 

                    {
                            this.textBox3.Text = FTPIP + tnn.FullPath.ToString().Replace("\\", "/");
                    }));
            }
            catch (Exception ex) { MessageBox.Show(ex.Message.ToString()); }
        }

第二種：Thread(ParameterizedThreadStart, Int32)

• 不帶引數的建構函式

  第三種：Thread(ThreadStart)

private void treeView1_NodeMouseClick()
        {
            try
            {
                TreeNode tn = new TreeNode();
                tn = e.Node;

                Thread th = new Thread(new ParameterizedThreadStart(URLshow));
                th.IsBackground = true;
                th.Start();
            }
            catch (Exception ex) { MessageBox.Show(ex.Message.ToString()); }
        }

        private void URLshow()
        {
            try
            {
                this.Invoke(new EventHandler(delegate
                    {
                            this.textBox3.Text = FTPIP + tnn.FullPath.ToString().Replace("\\", "/");
                    }));
            }
            catch (Exception ex) { MessageBox.Show(ex.Message.ToString()); }
        }

第四種：Thread(ThreadStart, Int32)

總結：
第二種和第四種的程式碼流程跟第一種和第三種相似，區別在於就多一個引數，該引數代表著執行緒要使用的最大堆疊大小（以位元組為單位）；

溫馨提示：避免使用此建構函式過載。 使用的預設堆疊大小Thread(ParameterizedThreadStart)建構函式過載是執行緒的建議的堆疊大小。 如果一個執行緒出現記憶體問題，最可能的原因程式設計錯誤，例如無限遞迴。

外附加一種

 private void treeView1_NodeMouseClick()
        {
            try
            {
                TreeNode tn = new TreeNode();
                tn = e.Node;

                Thread th = new Thread(new ThreadStart(delegate
                    {
                        URLshow(tn);
                    }));
                th.IsBackground = true;
                th.Start();
            }
            catch (Exception ex) { MessageBox.Show(ex.Message.ToString()); }
        }

        private void URLshow(object tn)
        {
            try
            {
                TreeNode tnn = (TreeNode)tn;
                this.Invoke(new EventHandler(delegate
                    {

                        this.textBox3.Text = FTPIP + tnn.FullPath.ToString().Replace("\\", "/");

                    }));
            }
            catch (Exception ex) { MessageBox.Show(ex.Message.ToString()); }
        }