private void Menu_菜单管理_Click(object sender, EventArgs e) { 菜单界面 fm = 菜单界面.Cteate(); fm.Show(); fm.Focus(); }
public static 菜单界面 Cteate() { if (_form == null) { _form = new 菜单界面(); } return(_form); }
private void 菜单界面_FormClosing(object sender, FormClosingEventArgs e) { _form = null; }