The first category, when classified as long, if the current position is long, it remains unchanged; if not, the position is changed to long through a buying operation. The second category, in the case of a short classification, if the position is short, it remains unchanged; if not, the position is turned into a short through selling and short selling operations. In addition, if the market prohibits short selling, then if the classification is short, if the position is short, it will remain unchanged; if not, the position will be turned into a short position through a selling operation. #whycrypto #xiaoyiclub #Binance #BNB #Web3