It is manifested in the unity of content and form. Therefore, not only some forms of factors such as genres, languages, but also artistic methods and writing techniques can influence the formation of style. According to the treatise, "the essay is in yiya, the book theory is reasonable, the book is true, the poetry is beautiful." "The book of the heart carving dragon · set" says: "the chapter table of the table, the accurate and elegant; An ode to a hymn, a feather is a feather. When the book is moved, the style is clear. Historical sequence notes, normal core of normal; With the help of a pro, the system is of great importance. The seven words, the work of qiao yan... ." It shows that different styles have different requirements for style. And the different language characteristic, is the important factor that forms the style, it is the important external performance of the style. Language style is an important aspect of creative style. As for the use of different art methods, the influence of creative style is more obvious, and romantic writers and realistic writers often show different styles. Parkour is a street streaking movement, a little free run, the difference is that free running is more performance - observation, while Parkour is speed - practicality. With the ape climb up like agile. But enthusiasts of the sport are more likely to see it as a form of youth subculture. It can help you cross any obstacle with your own strength or reach your destination. Parkour is not only the art of door movement, but also a way of life. There is no limit to the free-spirited movement and climbing, which is really an art. Parkour in China more and more. In the Parkour world, trainers are called Traceur and all Traceur must undergo professional training before taking part in the sport Most people visiting Dubai the first time think they will use a tough time in enabling their favourite food. Today, Dubai has completely transformed with regards to infrastructure, commerce, food as well as other aspects. When it comes to food, you will notice that Dubai has all sorts of restaurants. Even the vegetarian restaurants in Dubai are seeing a truly alarming rise in the shoppers. The limit is the basic concept in calculus, which refers to the tendency of the variable to gradually stabilize in the course of a certain change, as well as the value (limit value). The concept of limits was finally strictly elaborated by the likes of cauchy and westras. In modern mathematical analysis textbooks, almost all basic concepts (continuous, differential, integral) are based on the concept of limit