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.... Presentation != null ) { // 从演示部分获取演示文稿对象。...从演示部分获取演示文稿对象。 Presentation presentation = presentationPart . Presentation...