显示LED灯效果的小控件，设置方便，有灰红绿黄蓝几种颜色，显示大小可以更改。MFC下编写-LED lights show the effect of small controls, set up convenient, there are gray黄蓝several red and green color, indicating the size can be changed. MFC prepared

This chapter works with the next six chapters to act as a foundation for the technology discussions that follow. In this chapter, some fundamental concepts and terms used in the evolving language of internetworking are addressed. In the same way