如何使用apache poi制作每30秒更改一次幻燈片的PowerPoint文件? [英]How do I make a powerpoint file with apache poi that changes slides every 30 seconds?
有沒有辦法使用 Apache poi 從給定的 PowerPoint 文件中准確獲取演講者筆記? [英]Is there a way to get speaker notes accurately from a given PowerPoint file with Apache poi?