Vector graphics are mostly geometric, using straight lines and curves to describe the graphics, the graphics of the elements are some points, lines, rectangles, polygons, circles and curves, and so on, graphics can be infinite zoom, arbitrary rotation, and do not change color, fuzzy, and resolution independence. The biggest drawback is that it is difficult to display the vivid image effect with rich color levels. (common software: CorelDraw, Illustrator, Freehand, etc.)