Java Comparator排序

Collections.sort(arrs, new RankComparator());

class RankComparator implements Comparator<LeagueVo>{

@override
public int compare(LeagueVo arg0, LeagueVo arg1){
if(arg0.getLv() == arg1.getLv()){
if(arg1.getFightVal() == arg0.getFightVal()){
return arg0.getCreateTime() - arg1.getCreatTime();
}
return arg1.getFightVal() - arg0.getFightVal();
}
return arg1.getLv() - arg0.getLv();
}

}