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....要向演示文稿的所选幻灯片添加一条简单的直线,请遵循以下步骤: 创建 Presentation 类的实例 使用索引获取幻灯片的引用 使用 Shapes...represents the PPTX Presentation pres = new Presentation (); //Get the...