我正在尝试测试显示jquery-bracket中的括号，但其显示方式与示例显示不同。我在这里做错什么了吗？示例output

（layout.pug）

.label{
    border: 1px solid transparent;
}
.input:checked + .label{
    border-left: 1px solid green;
    border-top: 1px solid green;
    border-right: 1px solid green;
    position: relative;
    z-index: 2;
}
.panel{
    position: relative;
    bottom: 1px; // increase when your border size increase
    z-index: 1;
}

（main.js）

if (DG2.Items[0].ToString() != null && DG2.SelectedItem[0] != null)
        {
        int RecID = Convert.ToInt32(DG2);
        }
else 
{
MessageBox.Show("There is no RecID number selected","Error");
return;
}

（tournament.pug）

private void selectedCellsButton_Click(object sender,System.EventArgs e)
{
    Int32 selectedCellCount =
        dataGridView1.getcellCount(DataGridViewElementStates.Selected);
    if (selectedCellCount > 0)
    {
            for (int i = 0; i < selectedCellCount; i++)
            {
                (dataGridView1.SelectedCells[i].RowIndex.ToString());
                (dataGridView1.SelectedCells[i].ColumnIndex.ToString());
            }

        }
    }
}