一个AVI文件和BMP文件互相转换的程序，用C#编写，实现从avi文件中提取每一帧BMP图像，并可以把这些BMP图像重新组成AVI文件-An AVI file and BMP file to convert each other procedures, using C# Prepared realize avi files extracted from each fr a me BMP images, and BMP images ca