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.... 将修改后的演示保存为 PPTX 文件。 // 创建 Presentation 类的实例...save ( "ErrorBars.pptx" , SaveFormat . Pptx ); } finally { if...