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.... Shapes . Title . TextFrame . TextRange..."幻灯片标题" ; //设置副标题文本 slide . Shapes [ 2 ]. TextFrame . TextRange...