private const string FileName = "test.exe";

        //进程名称不带扩展名

        private const string ProcessName = "test";

        /// <summary>

        /// 打开进程

        /// </summary>

        /// <param name="sender"></param>

        /// <param name="e"></param>

        public static void Open()

        {

            try

            {

                Process.Start(string.Format(@"{0}\{1}", Application.StartupPath, FileName));

            }

            catch (Exception ex)

            {

            }

        }

        /// <summary>

        /// 关闭进程

        /// </summary>

        /// <param name="sender"></param>

        /// <param name="e"></param>

        public static void Close()

        {

            try

            {

                //可能存在进程名相同的进程

                foreach (Process process in Process.GetProcessesByName(ProcessName))

                    process.Kill();

            }

            catch (Exception ex)

            {

            }

        }