鱼友0412在请教各位一个问题，关于MySQL多表连接下的评论详情

大概写了一下，英文随便取的，你可以优化一下

select user_name,address,year ,(water_taotal * price.one_price + water_taotal * price.base_price + water_taotal * price.slop_price) as total ,(water_taotal * price.one_price) as one_total...