private void 修改教师信息ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            string[] vs = { dataGridView1.SelectedCells[0].Value.ToString(),
                            dataGridView1.SelectedCells[1].Value.ToString(),
                            dataGridView1.SelectedCells[2].Value.ToString(),
                            dataGridView1.SelectedCells[3].Value.ToString(),
                            dataGridView1.SelectedCells[4].Value.ToString() };

            MessageBox.Show(vs[0] + vs[1]);

            Form41 form41 = new Form41(vs, this);

            form41.ShowDialog();
        }
        private void 添加教师信息ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            Form41 form41 = new Form41(this);

            form41.ShowDialog();//打开
        }