private void 报告管理ToolStripMenuItem_Click(object sender, EventArgs e) { if (checkchildfrm("F_MarkView") == false) { F_ReportManage F_ER = new F_ReportManage(); F_ER.MdiParent = this; F_ER.WindowState = FormWindowState.Maximized; F_ER.Tag = 1;//设置为学生浏览模式 F_ER.Text = "报告管理"; F_ER.Show(); } }