在vb中调用封装好的API函数，实现位图bmp到jpeg格式的转换-in vb Calling Packaging good API function, Bitmap bmp to jpeg format conversion

VB压缩数据库，修复Access数据库文件，是在一瞬间完成的修复功能，因此测试截图上并没什么功能，有兴趣的可准备两个Access数据库测试一下。-VB compressed database, Access database file repair is completed at the moment of repair, so no test shots on what features are interested can prepare two Access database test.