//服务运行则停止服务
             if (sc.Status.Equals(ServiceControllerStatus.Running))
             {
                 sc.Stop();
                 sc.Refresh();
             }
//服务停止则启动服务
             if ((sc.Status.Equals(ServiceControllerStatus.Stopped)) || (sc.Status.Equals(ServiceControllerStatus.StopPending)))
             {
                 sc.Start();
                 sc.Refresh();
             }