It is an emotion to express one's victory, which needs to be expressed by blasting. Send fans to teammates to express the message of victory. It is an unwritten custom to shout "bang" on the court during the game. From the national team to sports schools in various provinces and cities, it is a habit for athletes who practice professionally at first sight, because shouting on the court can make athletes enter the game state as soon as possible. Research shows that the explosive power of sound can boost morale. Sometimes before the game, the coach will deliberately order the athletes to shout a few times to mobilize.