I booked a plane ticket from Shenyang to Shanghai online.

Take your ID card to the front desk of the airport to get your boarding pass one hour in advance (conservatively estimated). If checked baggage (liquids such as lotion, lotion, shampoo, etc. ) more than 100ML, need to check; Flammable and explosive articles such as lighters must also be checked; Large luggage needs to be checked, small luggage can be carried with you, and the carrying weight of economy class is limited to 20 kg. After passing the security check, you can board the plane.