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.... Color = Color . Black ; // 将矩形的线条颜色更改为白色...ShapeStyle . LineColor . Color = Color . White ; // 移除形状中的任何填充格式...