/// <summary>
/// 出栈 ，把页面从界面上移除
/// </summary>
public void PopPanel()
{
if (m_panelStack == null)
{
m_panelStack = new Stack <IPanel>();
}
if (m_panelStack.Count <= 0)
{
return;
}
//关闭栈顶页面的显示
IPanel topPanel = m_panelStack.Pop();
topPanel.OnExit();
if (m_panelStack.Count <= 0)
{
return;
}
IPanel topPanel2 = m_panelStack.Peek();
topPanel2.OnResume();
}