Shanghai varieties can be divided into "Ping Jin" and "Closing". For the newly opened positions that day, you need to choose Ping Jin, and for the historical positions, you need to choose Ping Jin. However, Dalian and Zhengzhou Stock Exchanges do not have the concept of "spreading the present". If there is an "old position", the "old position" is leveled first, and then the "new position" is leveled. Hope to adopt