粉丝男女比例显示

根据性别状态查询表count即可

 @Override
    public Integer queryFanManCount(String writerId) {
        QueryWrapper<Fans> queryWrapper = new QueryWrapper<>();

        queryWrapper.eq("writer_id", writerId);
        queryWrapper.eq("sex", Sex.man.type);

        return fanMapper.selectCount(queryWrapper);
    }

    @Override
    public Integer queryFanWomanCount(String writerId) {
        QueryWrapper<Fans> queryWrapper = new QueryWrapper<>();

        queryWrapper.eq("writer_id", writerId);
        queryWrapper.eq("sex", Sex.woman.type);

        return fanMapper.selectCount(queryWrapper);
    }