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.... Slide objSlide = null ; //访问演示文稿的第一张幻灯片...//访问演示文稿的第一张幻灯片 objSlide = objPres . Slides [ 1 ]; //选择第一张幻灯片并设置其布局 objSlide...