It can be a picture. When writing a paper, it is a common practice to insert the flow chart into the paper in the form of pictures. The advantage of this is that it can make the flow chart more clear and intuitive for readers and help readers better understand the content of the paper. When making a flowchart, you can use professional flowchart software, such as Visio and Lucidchart, to draw the flowchart and save it as a picture format (such as PNG and JPEG). ). Then, insert this picture into an appropriate chapter or position in the paper.