VC使用DLL多风格切换窗口，一种有两种风格供选择，界面风格在DLL资源里，通过DLL文件切换不同的窗口，现在好多软件都有风格切换的功能-VC uses DLL style of switching window, a two styles to choose from, interface style in the DLL resources in the DLL file, switch to a different window, now a lot of software have style switching function