The group ranking is determined according to the following rules:
1, with the highest score ranking first;
2. If two or more teams have the same points, compare the scores of the teams with the same points in the competition;
3. If they are still equal, compare the goal difference between teams with equal points;
4. If they are still equal, compare the number of goals scored by teams with equal points;
5. If they are still equal, compare the total goal difference of the whole group match;
6. If they are still equal, compare the total number of goals scored in the whole group match;
7. If it is still equal, draw lots.
The top two in each group qualify and enter the knockout stage. Among them, each group must kick off at the same time in the last round of two games.