此为动态连接库之源码，应用DirectX功能，把不同的MP3文件播放至不同音效卡作为输出。这是最初的版本，写得比较乱，不过对有需要开发此相关应用的朋友来说是个不错的参考。-This is the source code of a DLL which applying DirectX features to play multiple MP3 files to multiple sound card interfaces as audio outputs. This is the most initial version and hence might be a little bit messy but really a good reference for those who need to develop such kind of related applications.