Users log in to the OLISS Web side, click to enter the"Stock Management → Shore-based Stock → Oil Stock" interface in sequence, manually switch to the oil stock interface, display the current stock of oil in the "Current Stock" column of the list, click on the "Stock-in" on the right side of the row where the oil is located to perform the inbound operation, click on "Stock-out" to perform the outbound operation, and click on "More" to edit and view the inbound and outbound details.