//高亮显示
        private void DataGrid1_RowPrePaint(object sender, DataGridViewRowPrePaintEventArgs e)
        {
            if (e.RowIndex > DataGrid1.Rows.Count - 1)
                return;

            DataGridViewRow dgr = DataGrid1.Rows[e.RowIndex];
            try
            {
                for (int i = 0; i < DataGrid1.Rows.Count; i++)
                {
                    //dgr.Cells[12]是状态标志
                    if (dgr.Cells[12].Value.ToString() == "1" )
                    {
                        //dgr.DefaultCellStyle.BackColor = Color.Red;
                        dgr.DefaultCellStyle.ForeColor = Color.Blue;
                    }
                    else if (dgr.Cells[12].Value.ToString() == "2" )
                    {
                        //冲销标志为0，但是被冲销号不是0，则说明是被冲的记录，令其为绿色
                        dgr.DefaultCellStyle.ForeColor = Color.Red;
                    }

                    if (dgr.Cells[14].Value.ToString() == "√")
                    {
                        dgr.DefaultCellStyle.BackColor = Color.LightBlue;
                    }
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
        }