public static void KillProcess(string strProcessesByName)//关闭线程

        {

            foreach (Process p in Process.GetProcesses())//GetProcessesByName(strProcessesByName))

            {

                if (p.ProcessName.ToUpper().Contains("你要关闭的进程名字"))

                {

                    try

                    {

                        p.Kill();

                        p.WaitForExit(); // possibly with a timeout

                    }

                    catch (Win32Exception e)

                    {

                        MessageBox.Show(e.Message.ToString());   // process was terminating or can't be terminated - deal with it

                    }

                    catch (InvalidOperationException e)

                    {

                        MessageBox.Show(e.Message.ToString()); // process has already exited - might be able to let this one go

                    }

                }

            }

        }

 Environment.Exit();