Artistic style has the characteristics of diversity and identity. The rich diversity of the real world, the creative individuality of the artists, and the diversity of aesthetic needs of the artistic appreciator determine the diversity of artistic styles. Even the work of the same artist does not rule out the possibility of a variety of styles. It is the diversity of artistic style that has greatly promoted the prosperity and development of art. On the other hand, the various styles of the same artist have a dominant style in the whole because of the restriction of their creative personality. The style difference between different artists also have to get what they live together the aesthetic need of a certain age, nationality, class and art development, so as to show the consistency of style. The diversity and consistency of style are interrelated and permeated, presenting an intricate phenomenon, and should pay attention to the difference when making art comments. In modeling art, the variety and identity of style often have very vivid expression. Like the outstanding creation of Italian Renaissance art, Michelangelo's hero, Da Vinci's depth, and Raphael's grace are different. The Romanesque, gothic, Renaissance and baroque are the typical styles of their respective times. The paintings of the han dynasty and the sixth dynasty are "simple and beautiful", and the paintings of the early tang dynasty are "magnificent and magnificent", reflecting the different styles of The Times. Of course, an era also has an era of artistic style, which is due to people's relatively close aesthetic trend in a period of time. For example, the han dynasty mostly promoted the simple and rich artistic style, the 18th-century French popular decoration of the extremely strong rococo style and so on Profit is divided into pretax profit and after-tax profit according to its forming process. Profit before tax is also called total profit; Pre-tax profit minus income tax, i.e., profit after tax, also known as net profit