给MFC 中的MDI子窗口增加tab控制条，类似tab页面，对应着每个child窗口-MFC to the MDI window-increasing tab control, similar tab pages, corresponding to each child window

实现IE7一样的选项卡，在您的mdi环境下，子窗体在选项卡上生成,IE7 to achieve the same tab, mdi in your environment, the sub-form in the tab to generate