private void button1_Click_1(object sender, EventArgs e)
        {
            Form_ClystylePrint frm_print = new Form_ClystylePrint();

            MyData mydata = new MyData();
            SqlConnection cn = mydata.getConn();
            SqlCommand cmd = new SqlCommand();
            cmd.Connection = cn;
           

            cn.Open();
            cmd.CommandText = "select examiner 考官,car_shool 驾校,car 车牌号,car_type 车型,students_num 预约人数,table_maker 制表人 from Arrange_Table where exam_date = getdate()";
            
            SqlDataAdapter sda = new SqlDataAdapter(cmd.CommandText, cn);
            DataSet ds = new DataSet();
        
            sda.Fill(ds);
            

            dataGridView1.DataSource = ds.Tables[0];
           

            CrystalReport1 rpt1 = new CrystalReport1();
            rpt1.Load(Application.StartupPath + "CrystalReport1.rpt");
            rpt1.SetDataSource( ds.Tables[0]);//设置报表页面数据源
            
          
            frm_print.crystalReportViewer1.ReportSource = rpt1;
            cn.Close();
            cmd.Dispose();

            frm_print.Show();
        }