说明：  本文是基于vc++的特性，编译一个面向窗口的类，该窗口具有一般窗口的特性，经过设计一个窗口类；注册窗口类；创建窗口；显示及更新窗口的四个过程
(This article is based on vc++ features, compile a class for the window, the window with general characteristics of the window, through designing a window class registered window class create a window display and update the window of the four process)