关于COUNT查询，如何实现多条件查询

SELECT * FROM xsjl WHERE 业务员代码 IN (SELECT 业务员代码 FROM xsjl GROUP BY 业务员代码 HAVING count(*)<80) order by 业务员代码
请问各位怎么实现同时查询小于80和大于120

继续加条件就是了 比如：... HAVING count(*)<80 and count(*)>120 ...