说明：   用纯粹的API来创建窗口控件及其控制 作者: hwc 此代码示范并解释了如何用纯粹的API创建窗口控件，如使用CreateWindow和 CreateWindowEx在窗口中创建列表框、编辑框和按钮。不仅告诉你如何创建它们，而且还示范了如何使用。此外，代码还示范了如何用TAB、Shift+Tab等来控制输入焦点以及快捷键。
(Using pure API to create window controls and its control Author: hwc this code model and explains how to use the API to create a purely window controls, such as the use of CreateWindow and CreateWindowEx to create the list in the window box, edit box and button. Not only tell you how to create them, but also demonstrated how to use. In addition, the code also demonstrated how to use TAB, Shift+ Tab to control the input focus, etc., as well as shortcuts.)