调用
All(参数：true/false)
/// <summary>
/// 全选和取消全选
/// </summary>
/// <param name="bBool"></param>
private void All(bool bBool)
{
foreach (DataGridViewRow dgvRow in this.DgvUrlPath.Rows)
{
dgvRow.Cells["xz"].Value = bBool;
}
}