Spanish cup system

Except for the first and second qualifying rounds and the finals, all rounds of competitions are held in the form of two rounds of subject and object. If the total scores of both sides in the two rounds are not divided, the visiting team's goal priority system will be adopted, that is, the side with more away goals will be promoted; If the promotion team is still undecided, the two armies will play overtime for 30 minutes after the second round, and continue to adopt the preferential rules of the visiting team's goal. Once it was still a draw, it finally won by shooting at the other side 12 yards.