private void button7_Click_1(object sender, EventArgs e)
        {
            this.dataGridView1.ColumnCount            = 3;
            dataGridView1.Columns[0].HeaderCell.Value = "序号";
            dataGridView1.Columns[1].HeaderCell.Value = "中心频率(HZ)";
            dataGridView1.Columns[2].HeaderCell.Value = "幅值(dB)";
            for (int i = 0; i < 31; i++)
            {
                int index = this.dataGridView1.Rows.Add();
                this.dataGridView1.Rows[index].Cells[0].Value = i;
                this.dataGridView1.Rows[index].Cells[1].Value = i;
                this.dataGridView1.Rows[index].Cells[2].Value = i;
            }
            dataGridView1.Refresh();
            ExcelHelp excel = new ExcelHelp();
            DataTable dt    = excel.GetDgvToTable(dataGridView1);

            ps5000example.ketingzaosheng.Calculate calculate = new ketingzaosheng.Calculate();
            calculate.Owner = this;

            calculate.get_data(dt);
            calculate.Show();
            //this.Hide();
        }
        private void button8_Click(object sender, EventArgs e)
        {
            ExcelHelp excelHelp = new ExcelHelp();

            excelHelp.DataGridViewToExcel(dataGridView1);
        }