public override void Clear()
{
if (_succeedWork != null)
{
_succeedWork.OnDestroy();
}
if (_failWork != null)
{
_failWork.OnDestroy();
}
}
/// <summary>
/// 子对象销毁时（常用于重用子对象）
/// </summary>
/// <param name="command">Command.</param>
protected virtual void OnChildDestroy(CommandBase command)
{
command.OnDestroy();
}