/// <summary> /// 菜单栏-设置-参数设置 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void Menu_ParameterSet_Click(object sender, EventArgs e) { if (parameterSet == null) { parameterSet = new Laser_Version2._0.ParameterSet(); parameterSet.Show(); } else { if (parameterSet.IsDisposed)//若子窗体关闭 则打开新子窗体 并显示 { parameterSet = new Laser_Version2._0.ParameterSet(); parameterSet.Show(); } else { parameterSet.Activate();//使子窗体获得焦点 } } }