/// <summary>
/// 注销扫描驱动实例对象
/// </summary>
/// <returns></returns>
public virtual void ScanDisPose()
{
_instance = null;
}
/// <summary>
/// ע��ɨ������ʵ������
/// </summary>
/// <returns></returns>
public virtual void ScanDisPose()
{
_instance = null;
}