I take Wenhua Finance as an example: open the software-click on the external disk-click on COMEX in new york (here is American crude oil, if you want to check British Brent crude oil, click on London ICE)-select the crude oil contract you want to check;
The trend of crude oil contracts in the United States entering the delivery (expiration) month is linked together.
Us crude oil 1~ us crude oil 12 is a monthly crude oil contract.