它是一个简单的Windows32平台的应用程序，它可是很好的说明了窗口创建的步骤和原理。它经过四步：首先是设计窗口类，然后注册窗口类，创建窗口，最后是消息循环。-It is a simple application of the Windows32 platform, but it is a good descr iption of the window to create the procedures and principles. It is through the four steps: