hardness 硬度=first peak force springiness弹性=height food/height recovers cohesiveness粘结性=a2/a1 adhesiveness 粘附度=negative area from first bite fracturability破裂度=first break in cycle gumminess粘性=semi-soli...
select * from t8_6 as t 查询一次得到的是 1,2,3,4,2,3 然后这里的值依次到子语句中 首先查 1 得到 select count(*) from t8_6 where t8_6.a= 1 得到结果为 1在查 2 得到 select count(*) from t8_6 where t8_6.a= 2 得到结果为 2 sql就是 where 2...