结束某一进程

 //结束Excel进程
        private void KillExcel()
        {
            try
            {
                System.Diagnostics.Process[] ps = System.Diagnostics.Process.GetProcesses();               
                foreach (System.Diagnostics.Process p in ps)
                {
                    if(p.ProcessName.ToLower().Equals("excel"))
                    {
                        p.Kill();
                    }
                }
            }
            catch(Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
        }