The difference between La Liga and La Liga in the King's Cup

The difference between La Liga and B in the King's Cup lies in the ability and the number of teams. According to relevant public information, La Liga, the King's Cup, is the beginning of the Spanish football league, and La Liga is a Spanish second-class football league sponsored by the Spanish Football Association. Every season, there will be 20 teams in La Liga and 22 teams in La Liga. La Liga's league has a certain international reputation, and the team's strength is stronger, while La Liga has fewer well-known foreign players and its strength is not as good as La Liga's.