一个简单的文件浏览系统，主要针对Wince平台，去除了列表控件的滚动条，改用上下翻按钮实现-A simple file browsing system, mainly for Wince platform to control the scroll bar in addition to the list, turned down the button to switch to achieve

没有使用图形文件, 全部自画的按钮开关控件, 并且实现了开关事件-Don t use the graphics file, all the draw button switch control, and realizes the switch events