Thread parameterThread_t = null;  private void Print_DetailForm_Shown(object sender, EventArgs e)  {        parameterThread_t = new Thread(new ParameterizedThreadStart(this.openThread_telnet));      //parameterThread_t.IsBackground = false;      parameterThread_t.Start(null);  }    /// <summary>  /// 线程执行的方法，telnet获取数据  /// </summary>  private void openThread_telnet(Object obj)  {      //TelNet_Manage manage = new TelNet_Manage();      try      {          manage.PrintBySockets(null, wy_name, table, progressBar1, label2);          String localPath = Environment.CurrentDirectory + @"\Ne_data\wy\" + wy_name;          if (MessageBox.Show(this,"数据打印完成！\n文件位置：" + localPath + "\n是否进入该目录?", "提示", MessageBoxButtons.YesNo) == DialogResult.Yes)          {              System.Diagnostics.Process.Start(localPath);          }          this.Close();          System.Threading.Thread.CurrentThread.Abort();//终止当前线程      }      catch(Exception e)      {          MessageBox.Show(this,"打印数据失败！","提示");          System.Threading.Thread.CurrentThread.Abort();//终止当前线程            this.Close();      }      System.Threading.Thread.CurrentThread.Abort();//终止当前线程    }    private void button1_Click(object sender, EventArgs e)  {      //System.Threading.Thread.CurrentThread.Abort();//终止当前线程      if (parameterThread_t != null)      {          parameterThread_t.Interrupt();          parameterThread_t.Abort();          parameterThread_t.Join();                    GC.Collect();      }      this.Close();  }