I have passed the futures exam, and I am also interested in futures. -As for the problem you mentioned, you can't close the positions of empty orders and multiple orders. If it is necessary to close your position, you have to trade these two positions in the opposite direction. . . In this case, if you hold the same futures, the same month and the same number of short positions, it is called lock position. No matter how the futures price changes, you will not make a profit or lose money.