private static void Application_Idle(object sender, EventArgs e) { Application.Idle -= new EventHandler(Application_Idle); if (applicationContext.MainForm == null) { MESMainForm mainForm = new MESMainForm(); applicationContext.MainForm = mainForm; //初始化 mainForm.InitMain(); WelcomeForm welcomeForm = applicationContext.Tag as WelcomeForm; mainForm.Show(); welcomeForm.Close(); } }