/// <summary>
/// 当UI关闭时调用（UIManager中）
/// </summary>
public virtual void Close(object arg = null)
{
LogMgr.Log("arg:{0}", arg);
}
/// <summary>
/// 当点击关闭按钮时调用
/// 但是并不是每一个Window都有关闭按钮
/// </summary>
private void OnBtnClose()
{
LogMgr.Log("OnBtnClose()");
Close(0);
}
