What is the specific competition system of the Chinese Super League?

The Chinese Super League has a double cycle of home and away games, with a total of 16 teams participating. Throughout the season, there are 30 rounds of competitions and 240 fierce competitions, and the promotion and demotion system is implemented. (The implementation of "promotion by two and reduction by two" means that two teams are promoted from China and two teams are reduced to China).

Ranking Rules of Super League (before the 2009 season)

1, each team wins 3 points, draws 1 points, and loses 0 points;

2. At the end of the Super League, the team with more points ranks first;

3. If two or more teams score equally, arrange them in the following order:

A, teams with equal points compete with each other for teams with more points, ranking first;

B, teams with equal points compete with each other with more goal difference, ranking first;

C, the team with equal points scored more goals in the opponent's game, ranking first;

D, the team with equal points scored more goal difference in all the competitions of the Super League that year, ranking first;

E, the team with equal points scored more goals in all competitions of the Super League that year, ranking first;

F, determine the ranking by lottery or play-offs.

Ranking Rules of Super League (2009 season)

(1) Each team wins a game with 3 points, draws a game 1 point, and loses a game with 0 points;

(2) At the end of the Super League, the team with more points ranks first;

(3) If two or more teams score equally, arrange them in the following order:

1, teams with equal points compete with each other for teams with more points, ranking first;

2. Teams with equal points have more goal difference, ranking first;

3. The team with equal points scored more goals in the opponent's game, ranking first;

4. Teams with equal points scored more goal difference in all the Super League matches in that year, ranking first;

5. Teams with equal points scored more goals in all the competitions of the Super League that year, ranking first;

6. The red and yellow cards in the annual competition are deducted less (excluding disciplinary punishment), ranking high;

7. Draw lots to decide the ranking.

(Attachment: Before the end of all 30 rounds, the same teams in the standings will be sorted by goal difference)