private void button1_Click(object sender, EventArgs e)        {            listBox_thread_list.Items.Clear();            Process[] processes;            processes = System.Diagnostics.Process.GetProcesses();            Process process;            for (int i = 0; i < processes.Length; i++)            {                                process = processes[i];               // str = str + Convert.ToString(process.Id) + ": "+process.ProcessName+"\r\n";                listBox_thread_list.Items.Add(process.Id + ":"+process.ProcessName);                           }            //System.Windows.Forms.MessageBox.Show(str);           // textBox_thread_list.Text = processes[0].ProcessName.ToString();                    }        private void get_this_thread_Click(object sender, EventArgs e)        {            string item = null;            try            {                item = listBox_thread_list.SelectedItem.ToString();                            }catch (ArgumentException e1)            {                throw new ArgumentException("出错啦！", e1);            }            string[] items = item.Split(new Char[]{‘:‘});            int thread_id = Convert.ToInt32(items[0]);            string thread_name = items[1];            long thread_RAM = Process.GetProcessById(thread_id).WorkingSet64;            using (var private_RAM = new PerformanceCounter("Process", "Working Set - Private", thread_name))            System.Windows.Forms.MessageBox.Show("线程ID:" + thread_id + "\n线程名:" + thread_name + "\n线程工作集:" + (thread_RAM) / 1024 + "Kb" + "\n线程专用内存:" + (private_RAM.NextValue() / 1024) + "Kb");        }