#region//设置只能运行一个Process cur = Process.GetCurrentProcess();foreach(Process p in Process.GetProcesses()){if(p.Id == cur.Id)continue;if(p.ProcessName == cur.ProcessName){SetForegroundWindow(p.MainWindowHandle);SendMessage(p.MainWindowHandle, WM_SYSCOMMAND, SC_RESTORE,0);return;}}#endregion