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....= System :: MakeObject < Presentation > (); auto slide = pres...TextFrame 托管的文本。请遵循以下步骤: 创建 Presentation 类的实例。 使用其索引获取幻灯片的引用。 向幻灯片添加一个矩形类型的...