Class Libraries & REST APIs for the developers to manipulate & process Files from Word, Excel, PowerPoint, Visio, PDF, CAD & several other categories in Web, Desktop or Mobile apps. Develop & deploy on Windows, Linux, MacOS & Android platforms....创建空的演示实例 Presentation pres = new Presentation (); try { // 添加媒体播放器...控件的演示文稿 Presentation pres = new Presentation ( "ActiveX.pptm"...