1, method 1
According to the shape of graphics, it can be divided into three-dimensional graphics and plane graphics, and can also be divided into circles, triangles and squares.
2. Method 2
It is classified by color. When classifying graphics, you can use colors to draw graphics. At this time, different colors can be used to classify, and several colors can be divided into several categories, such as those painted in blue as one category and those not painted as one category.
3. Method 3
According to the size of the figure, the big one is a class, and the small one is a class. For example, the same size is classified as one class, and the different sizes can be classified as one class.