在PowerPoint中,图形的中心点是默认固定在图形的中心点上,由于不能修改,因而使用起来很不方便。而在演示文稿的制作过程中,教师往往需要让图形绕着特定的点进行旋转,以便于学生进行观察。那么,如何更改PowerPoint中的图形中心点来达到上述目的呢?经过摸索笔者发现,当在PowerPoint中组合两个图形的中心点时,默认的是大图形的中心点, In PowerPoint, the center of the graph is fixed at the center of the graph by default, and can not be easily modified for use. In the presentation of the production process, teachers often need to make the graphics around a specific point of rotation, in order to facilitate students to observe. So, how to change the graphics center point in PowerPoint to achieve the above purpose? After exploration I found that when combining the two graphics in the center of the PowerPoint, the default is the center of large graphics,