如果business_code是多个记录。。。
如果business_code是单条记录。。
select price from serivce_id where in(select service_id from business where business_code = @business_code)
如果business_code是多条记录。。
select price from serivce_id where in(select service_id from business where business_code in @business_code)
应该这样写吗?